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21. 28.




Private. Teachers of Chemistry in London.

Sept. 92, 1865.

Laboratory.—The suite of Laboratories for Practical In

struction in General and Pharmaceutical Chemistry is under WINTER SESSION. Lecturer.-Dr. H. M. Noad. Tuesday, Thursday, and the direction of Dr. Attfield, assisted by Mr. Tilden. Fee Saturday, at twelve. One course, 61. 6s.

for the entire session of ten months, 261. 58. The Labora

tories are open from half-past 9 a.m. till s p.m. Students Practical Chemistry.-Dr. Noad. Daily, at half-past can enter at any period during the Session.

Two Jacob Bell Memorial Scholarships of 30l. each are nine. One course, 41. 4s. Besides the usual course, instruction is given in the Laboratory daily by Dr. Noad.

open to competition annually in July. GUY'S HOSPITAL.


Dr. A. Taylor. Tuesday, Thursday, and

An Evening Class on Monday, at 7 p.m., for Experi, Saturday at eleven. One course, 56. 58.

mental instruction in Theoretic Chemistry. The annual

Course consists of three terms, each everaging ten lectures ; Fractical Chemistry.-Mr. Stevenson. Monday, Wed.

fee, 55. per term. Subjects : First year, Metalloids ; second nesday, and Friday, from ten to one. One course, 41. 48.

year, Metals and Practical Analysis. LONDON HOSPITAL.


TOWN. Lecturer.-Dr. Letheby. Monday, Wednesday, and

Chemical Professor.-Richard V. Tuson. Friday, at half-past ten. One session, 7l. 78.

The Session commences October 3 and ends May 1.

Lectures on Chemistry and Veterinary Materia Medica

on Monday, Wednesday, and Friday mornings, from Practical Chemistry.Dr. Letheby: Monday, Wednes

eleven till twelve. day, and Friday, at a quarter-past eleven. One session,

Practical Chemistry in the new Laboratory daily.


ROAD, BAYSWATER. Lecturer.—Dr. Matthiessen. Tuesday, Thursday, and Chemical Professor.-W. J. Russell, Ph.D., F.C.8. Saturday, at a quarter-past ten a.m. One session, sl. 58. Practical Chemistry.--Dr. Matthiessen. Saturday, from

PRIVATE TEACHERS OF CHEMISTRY IN nine to one. One session, 31. 38.


Mr. J. C. Braithwaite, 54, Kentish Town Road, N.W.

- Chemical and Toxicological Class on Monday and Lecturers.- Mr. Taylor and Mr. Heisch. Monday, Saturdays.

Thursday evenings at 8. Laboratory open daily, except Wednesday, Friday, and Saturday, at eleven. One ses- Professor E. V. Gardner, F.C.S.-College of Experision, 3l. 38.

mental and Natural Philosophy, 44, Berners Street,

Laboratory and Class Rooms open daily, morning and Practical Chemistry.-Mr. Taylor and Mr. Heisch. evening. Monday, Thursday, and Friday, at half-past eleven. One

Evening Classes in connexion with the Department of Bession, sl. 58.

Science and Art. The chemical lectures embrace courses ST. THOMAS'S HOSPITAL.

on-1. Elementary Chemistry: II. Chemistry and Chemi

cal Analysis. III. Organic Chemistry. IV. Geology and Lecturer.-Dr. A. J. Bernays. Tuesday, Thursday, and Mineralogy. A Laboratory Class also meets on two evenSaturday, at eleven.

ings in each week.

Mr. S. Highley, F.G.S., F.C.S., 8c.-Scientific EducaPractical Chemistry.-Dr. A. J. Bernays. Friday, at tional Museum, 18, Green Street, Leicester Square, şives twelve ; Saturday, ten to one.

evening class instruction in the following educational

courses :-Geology, Mineralogy, chemical and physical. WESTMINSTER HOSPITAL.

Photography: its principles, practice, and applications,

&c., &c. Lecturer.-Mr. F. Dupré, Ph.D. Tuesday and Thurs

Mr. Henry Mattheros.- Laboratory, 30, Gower Street, day, at three ; Friday, at half-past ten. One course, gl. 58. in its application to Medicine, Agriculture, and Commerce.

Bedford Square, gives practical instruction in Chemistry Practical Chemistry.--Mr. F. Dupré. Tuesday and

Laboratory open daily. Thursday, at half-past nine. One course, 21. 28.

Dr. Medlock, 20, Great Marlborough Street, Regent Street.

Messrs. Nesbit, Lansdell, and Co.-College of Chemistry PHARMACEUTICAL SOCIETY OF GREAT and Agriculture, 38, Lower Kennington Lane, S. PracBRITAIN, 17, BLOOMSBURY SQUARE, W.C. tical and Analytical Chemistry, Mr. J. Lansdell, F.C.S.,

ro a.m. to s p.m.

Mr. John Newlands, F.C.S.-Laboratory, 19, Great St. These Lectures will be delivered on Wednesday and Helens, Bishopsgate Street, gives practical instruction in Friday mornings, at half-past 8 o'clock. Part 1.-Physics in relation to Chemistry and Pharmacy. minations.

Analysis, and prepares gentlemen for various public exa. Part 2.-Chemistry of Inorganic Bodies. Part 3:-Chemistry of Organic Bodies.

l'olytechnic Institution.- Professor Pepper.-A Course Fee. For Registered Apprentices and Associates of the ments will be given on Monday evenings during the pre

of Lectures on the Chemistry of the Non-Metallic EleSociety, 108. 6d. For those not connected with the Society, sent term. Students have free admission to the Library and Cornwall Villa, Westbourne Park. The Laboratory will

Wentworth E. Scott, F.C.S.- Analytical Laboratory, Museum,

re-open for pupils on Monday, October 16.







ilo 18.


Provincial Schools.


Sept. 22, 1865.

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to 10

Mr. A. P. Tarner.- Laboratory, 3, Upper Baker Street, Analysis for the 3rd. The book used in these Classes is N.W., gives practical instruction in Chemistry in all its “Church's Laboratory Guide for Students of Agricul. branches. The class of instruction is modified to suit the tural Chemistry” (Van Voorst). Examples for the 3rd requirements of the student.

Class are

selected from Agricultural Products and

Materials. Students of the 4th Class who are desirous of UNIVERSITY OF OXFORD.

obtaining the College Diploma work in the Professor's

private laboratory. Professor of Chemistry.—Sir B. C. Brodie, Bart., M.A., Chemical Manipulation.-Monday, 2 p.m.; Wednesday, F.R.S.

Lee's Reader in Chemistry.-A. G. V. Harcourt, M.A. Qualitative Analysis.- Tuesday, 10 a.m. ; Thursday, A commodious Laboratory is attached to the new

Quantitative Analysis.-Thursday, 2 p.m.; Friday, 2 p.m. Scholarships of about the value of 75l. are obtainable The Autumn Session of the College divides October 6. at Christchurch, Magdalen, and other Colleges, by com- The Spring Session will commence about January 8, 1866. petitive examination in Natural Science.



Lecturer on Chemistry.—Mr. Walton. Professor of Chemistry.-G. D. Liveing, M.A.

The usual Courses for the Medical Boards. A Course of Lectures is delivered every Lent and Easter

LEEDS SCHOOL OF MEDICINE. Term. The former course must be attended by candidates

Leclurers on Chemistry.-Messrs. Scattergood and R. for the B.A. and LL.B. degrees. Candidates for Medical Reynolds. degrees must attend both courses.

The usual Courses for the Medical Boards.
There is no University Laboratory, but Sydney and St.
John's Colleges have laboratories of their own. The latter

LEEDS MECHANICS' INSTITUTION AND is open to members of other Colleges when not fully occu.


Chemical Classes for instruction in Elementary, PracA new and commodious laboratory, in connexion with tical, and Analytical Chemistry. Downing College, will shortly be ready for use.

Teacher.—Mr. George Ward, F.C.S.

The usual Sessional Course of instruction in abstract

and applied Chemistry will commence on Friday, Septem. PROVINCIAL SCHOOLS.


at 8 p.m.

Thé Elementary Class meets on Friday Evenings, 8.15 BIRMINGHAM.-QUEEN'S COLLEGE.

A Class for the study of Organic Chemistry meets on Professor of Chemistry.--Alfred Anderson.

Monday evenings, 8.15 to 9:30. A course of seventy Lectures on General Chemistry

Practical Chemistry, Laboratory Caurse, Tuesday and during the Winter Session, and a Practical Course for the Thursday evenings, from 7.30 to 10 o'clock. Medical Boards in the Summer.

Fees, payable in advance :-Elementary Chemistry, The Laboratory is open for daily instruction.

Friday, per Session, il. 155.; 58. 6d. per month. The BIRMINGHAM.-SYDENHAM COLLEGE. subscription includes a selection of apparatus and material Professor of Chemistry.--Dr. A. Hill.

specially adapted for the course of instruction. To pupils A Course of Lectures on General Chemistry during the providing their own materials, il. 18. per Session. Winter Session, and a Practical Course in the Summer. Organic Chemistry, Monday, per Session, 108. 6d. PracThe Laboratory is open for daily instruction.

tical Chemistry, Thursday, per Session, il. iš. ; 38. per BIRMINGHAM.-MIDLAND INSTITUTE. month. Including apparatus and material, Lecturer on Chemistry.-Mr. W. M. Williams.

BRISTOL.-BRISTOL MEDICAL SCHOOL. Principal.-Dr. Sheridan Muspratt.
Lecturer on Chemistry.—Mr. Herapath.

Assistant.--Mr. M. Murphy.

Laboratory open daily, except Saturdays. The prin

cipal or his assistant is always present from 10 to s. Conducted by Dr. F. W. Griffin. A Course of Lectures on General Chemistry, commence in the Summer.

A Course of Practical Chemistry for Medical Students ing in October, and Laboratory instruction throughout LIVERPVOL ROYAL INFIRMARY SCHOOL OF the year. ROYAL AGRICULTURAL COLLEGE, CIREN.


Lecturer on Chemistry.-Dr. J. B. Edwards.
Professor of Chemistry.-A. H. Church, M.A., Oxon,

The usual Courses for the Medical Boards. F.C.S.

MANCHESTER ROYAL SCHOOL OF MEDICINE. Assistant Professor of Chemistry.—R. Warington, Esq., Lecturer on Chemistry.-Mr. D. Stone. jun., F.C.S.

The usual Courses for the Medical Boards. The Session commences on August 3. The Courses A Laboratory is connected with the School. on Organic and Organic Chemistry will be continued to OWEN'S COLLEGE, MANCHESTER. the end of the Session. The Lectures are illustrated by (IN CONNEXION WITH THE UNIVERSITY OF LONDON.) experiments and specimens. Some stress is laid upon Chemistry.-Professor H. E. Roscoe, B.A., Ph.D., the knowledge of important minerals, of which, in the F.R.S., F.C.S. College Museum, there is a good collection, lately Junior Class.- Wednesday and Saturday, from 9:15 to enriched by valuable additions presented by Capt. Guise. The lectures are given at the following hours:

10'15 a.m.

Subject: Inorganic Chemistry, comprising the laws of Inorganic Chemistry. - Tuesday, 2 p.m.; Thursday chemical combination, and a description of the properties (catechetical), 10 am. ; Friday, 9 a.m. Organic Chemistry.Thursday, 3 p.m.; Friday, 2 p.m. their most important inorganic compounds. Fee, 3h 3.

and mode of preparation of the elementary bodies and The Course of Instruction in Practical Chemistry in the Senior Class.–Tuesday and Thursday, from 9:15 to Laboratory, comprises Chemical Manipulation for the ist 10'15 a.m. Class, Qualitative Analysis for the 2nd, and Quantitative Subject: Organic Chemistry, giving the properties and 144

Provincial Schools.

Sept. 99, 1865.

relations of the best defined groups of organic bodies, and Free to all students attending the Laboratory Classes. the laws regulating their formation.

Fee to others, il. 18. Students are expected to answer the written exercises Dalton Chemical Scholarships.-Two, each of the annual and attend the viva voce examinations given in these classes. value of 501., offered in alternate years, and tenable for Fee 31. 38. For both classes, sl. gs.

two years. The scholarships are awarded for the best Extra Class.- Wednesday, from 4 to 5 p.m.

original investigations in chemistry prosecuted at the ColSubject : Technological Chemistry.

lege, with a satisfactory written examination in Chemistry. The chemical principles involved in the most important The Lectures on Chemistry in Owen's College are recogchemical manufactures will be chiefly considered in this nised by the University of London for its Medical Degrees, course. The subjects will be discussed as follows, and as by the Royal College of Surgeons, and by the Apothefar as time will permit:

caries' Hall. 1. Production of Heat-Heat of Combustion-Com


(IN CONNEXION WITH THE UNIVERSITY OF DURHAM.) 2. Production of Light-Coal Gas-Measurement of

Lecturers on Chemistry.-Dr. T. Richardson and Mr. Illuminating Power of Coal Gas-Distillation of Coal. A. F. Marreco.

3. Water and Air, as regards their Sanitary and Tech- The Laboratories are open daily throughout the year nological Relations.

from 10 to 5 o'clock. Non-Medical students can attend 4. Processes concerned in the manufacture and applica- Laboratory Practice, and receive instruction in analysis

, tion of the Alkalies.

on the following terms-viz., six days in the week, zıl. 1os. 5. Dyeing and Calico Printing.

per annum; four days in the week, 21l. per annum; and 6. Manufacture of Acids.

for shorter periods by arrangement. It is recommended 7. Manufacture of Glass and Porcelain.

that, if practicable, the Winter Course of Lectures should Students attending this course must be acquainted with be attended before the student en ters the Laboratories. the principles of chemical science. Fee, zl. 28.

SHEFFIELD MEDICAL INSTITUTION. Analytical and Practical Chemistry.- Laboratory Course Lecturer on Chemistry.- James Allan, P.D., F.C.S. - Professor Henry E. Roscoe, B.A., Ph.D., F.R.S. (The The usual Courses for the Medical Boards. Professor is assisted in the instruction of the students by SHEFFIELD SCHOOL OF METALLURGY, Mr. C. Schorlemmer.)

CHEMISTRY, AND PHARMACY. The aim of this course is to make the student practically

Professor of Chemistry.-James Allan, Ph.D., F.C.S. acquainted with chemical science, to enable him to conduct analysis and original research, and to fit him for applying mence on Wednesday, October 6,


The Winter Course of Lectures on Chemistry will comthe science to the higher branches of Art, Manufactures,

The Laboratories for Practical Chemistry and Assaying and Agriculture. To accomplish this, an attendance of not less than four days per week during three whole Ses

are open daily. sions is, as a rule, necessary. It is very advisable that

Evening Classes on Mondays and Thursdays. each laboratory student should attend or should have

SCOTLAND. attended the course of lectures on Theoretical Chemistry.

The College Laboratory will be open for students daily The Scottish Schools open on November 6. from 10:30 a.m. until s p.m., except on Saturdays, when

UNIVERSITY OF EDINBURGH. it will be closed at 1'30. Half an hour, from 1'30 until 2, Professor of Chemistry.-Dr. Lyon Playfair, C.B., F.R.S. allowed for dinner.

ROYAL COLLEGES OF PHYSICIANS AND The Laboratory is fitted with every convenience for the

SURGEONS, EDINBURGH. prosecution of practical chemistry, all branches of qualitative and quantitative analysis, and original research. these Colleges are delivered :-

The following Courses of Lectures in connection with Each student is provided with a separate working table, Chemistry (School of Arts, Adam Square), 10 a.m., Dr. set of tests, fuel, water, and gas, free of expense; but he Stevenson Macadam ; Practical Chemistry and Analytical is required to provide his own apparatus, a few of the more Chemistry, 9 a.m. till 5 p.m., Dr. Stevenson Macadam (at expensive reagents, and the chemicals required for his Surgeons Vall); Chemistry (4. High School Yards), experiments. Other apparatus or instruments of a more

11 a.m., Dr. A. C. Brown ; Practical Chemistry and Analys expensive description may be obtained on loan from the tical Chemistry, 9 a.m. till.5 p.m., Dr. A. C. Brown Laboratory Steward, subject to regulations to be prescribed (4, High School Yards). by the Professor.

Practical Chemistry, zł. 38.; Analytical Chemistry, 21. Fees for the Session.-Students working six days per a month, 5l. for three months, or rol. for the Session of week, 21l. ; ditto four days, 171. 179. ; ditto three days, six months. 131. 138. ; ditto two days, gl. 98.; ditto one day, 31. 55. ; Practical and Analytical Chemistry, Dr. Stevenson MacStudents entering the Laboratory Class at or after Christ- adam (at Surgeons' Hall); Practical and Analytical Chemas, for not less than two days per week, will be charged mistry, Dr. A. C. Brown (4, High School Yards). two-thirds of the fees for the whole Session.

EDINBURGH VETERINARY COLLEGE. Special Fees for Shorter Periods.-For six months, six Chemistry, Theoretical and Descriptive.-Dr. A. Dalzell. days per week, 171. 178.; five months, ditto, 151. 158.;

UNIVERSITY OF GLASGOW. four months, ditto, 137. 135. ; three months, ditto, iol. 109.; two months, ditto, 77. 78.; one month, ditto, 41. 4s. F.R S.E., F.C.S., &c.

Professor of Chemistry.-Thomas Anderson, MD., Students working only one day per week will ordinarily Assistants.-Edmund J. Mills, B.Sc., F.C.S, tutor ; be required to spend three hours of that time at a class Magnus M. Tait, F.C.S.; William A. Dixon, F.C.S. ; which will be held on Saturday mornings, from 10'30 Walter Stewart. a. m. to 1'30 p.m.

The Courses of Chemical Instruction given by Dr. AnderChemical Calculations.-Instruction in the methods of son are intended to afford to the Student the means of Quantitative Estimation in Chemistry, and intended to acquiring a thorough knowledge of the Science of Chemis. supplement the instruction in Practical Chemistry, will try, and its applications to Medicine and the different be given by Mr. Schorlemmer, on Mondays, from 4 to 5p.m. branches of the useful arts.

Laboratory students are recommended to attend and to In addition to the Lectures, the class is divided into small answer the written exercises, and the viva voce questions sections, which meet separately, and receive tutorial ingiren in this class.

struction from Mr. Mills.

Sept. 28, 1865.


Irish Schools--Notices of Books.


at 7

At certain periods during the Course, written exercises Oral Examinations are held at fixed periods during the are prescribed, some to be done at home, and others in the Session. lecture-room, and without the aid of books or notes.

The Fee is zl. 38. The Course of Practical Instruction in the Laboratory is II. PRACTICAL COURSE.—This course is given during arranged in such a manner as to lead the Student through the Summer Session. It is chiefly devoted to practice in a complete series of Analytical operations.

Qualitative Analysis, with the view of enabling the The fundamental instructions are the same for every Student to test unknown substances, poisons, the animal pupil, whatever may be the ultimate object of his studies; secretions, &c. but after he has acquired a competent knowledge of the

The Fee is 31. 35. general methods of analysis, and a sufficient amount of III. LABORATORY PUPILs.—The Chemical Laboratory practical skill, the course for each student diverges into is open during the College Session, on the first five days the particular department of the science, or its practical in each week, from 1. a m. to 3 p.m. The course of application to Medicine, Agriculture, or the Manufacturing instruction is under the direction of the Professor of Arts, which he may desire to prosecute.

Chemistry and of the Teaching Assistant. Students can enter the Laboratory at any time through- A limited number of the most distinguished Students out the year.

attending the Practical Course are admitted, free of charge, The Laboratory Fee is 47. 48. for three months; for the as working pupils into the Laboratory. Course of Lectures, 31. 38.

Text books: Wilson's "Chemistry" (Chambers' Course); ANDERSON'S UNIVERSITY, GLASGOW.

Fownes' “ Manual of Chemistry;" Miller's “ Elements of

Chemistry." Professor of Chemistry.-Dr. Penny.

The Winter Course of Scientific Lectures on Chemistry
will be commenced on Tuesday, November 1, at 10 a.m.

Chemistry.-M. Foster Heddle, M.D.
Instruction in Practical Chemistry and Analysis in the
Laboratory, daily from 11 till 4.

The Private Laboratory for Commercial Analyses and

Assays is open daily throughout the year.
Evening Course of Popular Lectures on Inorganic Che-

Professor of Chemistry.- Dr. J. Apjohn.

The Laboratory is open through the year. mistry, with special reference to the Industrial Arts, on Fridays, commencing November 6, at 8.30.

CATHOLIC UNIVERSITY. Evening Course of Practical Chemistry, on Thursdays,

- Professor of Chemistry.Dr. W. K. Sullivan.


Lecturer on Chemistry.- Dr. Davy. Lecturer on Chemistry.-Dr. Wallace, F.R.S.E., F.C.S.

Practical Chemistry in the summer. The Laboratory is open throughout the year for instruc

tion in Practical and Analytical Chemistry. Fee for six Lecturer on Chemistry.-Dr. Cameron.
months, 1ol. 1os.

Practical Chemistry in the summer.
A Course of twenty-five Evening Lectures on Organic ROYAL COLLEGE OF SURGEONS.
Chemistry will commence on 3rd October, at 8.30 p.m. Lecturer on Chemistry.-Dr. Barker.

Laboratory open throughout the year.


Professor of Chemistry.-Dr. Andrews. Daily Lectures on Chemistry. — Six months' Course.

QUEEN'S COLLEGE, CORK. Fee, 21, 2s. Beginning on Monday, November 6, at 10 a.m. Professor of Chemistry.-Dr. Blyth. Analytical Chemistry.-Daily from 9 a.m. till 5 p.m.,

QUEEN'S COLLEGE, GALWAY. beginning November 1.

Professor of Chemistry.Dr. T. H. Rowney, These Classes qualify for the various Medical and

A Laboratory for practical instruction is attached to Public Boards.

all the Queen's Colleges. The usual Practical Course for EVENING CLASSES.-Course of twenty-five lectures on

the Medical Boards is given in the summer. The Winter
Inorganic Chemistry in the Lecture-hall of the Glasgow Session in Ireland commences in November.
Athenæum, on Tuesday Evenings at 8, beginning on
November 7 The Laboratory is open on Mondays,
Wednesdays, and Fridays, from

till 9 p.m., for instruc-

tion in Analytical and Practical Chemistry.

Journal für Praktische Chemie. No. 10 and 11. 1865. CARLTON-PLACE SECULAR SCHOOL, GLASGOW. R. HERMANX contributes several papers on the Niobium

Teacher.- John Mayer, F.C.S.

Chemistry and Metallurgy, especially with the view of group of metals. The first and most important is entitled passing the Examinations of the Society of Arts and the author announced the discovery of ilmenium in 1845, but

Researches on Niobium, Tantalum, and Ilmenium." The Government Department of Science and Art.

its existence has been scarcely recognised, and it is seldom Lectures on Tuesday and Thursday at 8 p.m.

mentioned in chemical works. In this paper, however, a UNIVERSITY OF ABERDEEN.

lengthy account of the metal and its compounds is given, Professor of Chemistry.-James S. Brazier, F.C.S. which seems to place its individuality beyond doubt, Teaching Assistant.-James C. Brown.

although Blomstrand, experimenting upon one of the I. SYSTEMATIC COURSE.-The Lectures are delivered same minerals (columbite) in which ilmenium is found, on the first five days of each week during the College recognised only niobium and tantalum. We shall give Session. They commence with the discussion of the an abstract of the paper shortly. The other papers by General Principles of Chemical Philosophy, including the the same author are « On the Composition of Wöhlerite, Atomic Theory and the Chemical Relations of Heat. "The Aeschynite, and Eurenite, with Remarks on Zirconia ;” and Non-metallic and Metallic Elements and their compounds “ On the Occurrence of Kerolith in the Ural.A paper by are fully treated of, together with their more important Delafontaine “On the Composition of Molybdates of the applications to the Arts. The latter part of the course is Alkalies" succeeds. The next article is by Rudolph devoted to the subject of Organic Chemistry.

Weber, " On Compounds of Acichloride of Selenium with

Miscellaneous-Answers to Correspondents.


Sept. 22, 1865. Metallic Chlorides." The only other paper we need notice of our countrymen in believing a story for which there is is by Dr. Hugo Gericke, “On the Salts of Bromisatinic not the slightest foundation. Antozone, therefore, has no Acid, and some Ammonia and Sulphur Derivalives of existence." Bromisatin."

Now as to the supposed decomposition of oxygen, or its

division into two oppositely active states, we thought that CORRESPONDENCE.

Schönbein had convinced himself, if not everybody else, of the reality of that. Ozone, O, we know in the gaseous

state; antozone, O, has never yet been obtained in the Ethers of the Formic Series.

gaseous form; but it would, we fancy, be just as reasonable To the Editor of the CHEMICAL News.

to deny the existence of fluorine, as to deny the existence SIR–M. Lorin announced to the French Academy of of antozone, on the simple ground of its non-isolation. Sciences last month (August 28) that he had discovered The story told was that Schönbein had isolated antozone ; a new method of preparing the formiates of the alcohol and if he is “much amused" at our credulity in believing radicles. He distils glycerine, oxalic acid, and the re- this, we may say that the Professor himself is to some quisite alcohol together. Will you permit me to remind extent responsible for it,-for, in a letter addressed to Dr. your readers that more than nine years ago (in the Philo- Faraday, published in the Philosophical Magazine for sophical Magazine for July, 1856)ʻI described the same February, 1861, he writes :—"I have been working hard process ? ! may state that the extensions of the process these many months to obtain antozone, e, in its insulated mentioned in my original paper I have repeatedly verified state, and I flatter myself that I have succeeded—at least, and constantly employed for some years in the preparation to a certain extent." Now, no great stretch of credulity of various ethers. I enclose a copy of my original paper.

was required to believe that the Professor had accomI am, &c. A. H. CHURCH. plished in 1865 what he says he says he had succeeded in R. A. Colloge, Cirencester.

doing, “to a certain extent," in 1861.

British Association. The following papers were Manufacture of Soda from Cryolile in America. read in Section B on the last day of the meeting: To the Editor of the CHEMICAL News.

T. Wood-On the New Formulæ, with Reference to Schoo's SIR,-How comes it that the English soda ash manufac

and Examinations. turers have allowed the Americans to steal a march on Professor Maskelyne-On Crystallised Melaconite and them in the matter of cryolite? A company here have

Tenorite. secured, so I understand, the monopoly of all the cryolite w. White exhibited Photographs of the Interior of the mined in Greenland, except that used in Denmark, for the Great Pyramid taken with the Magnesium Light by Propurpose of the manufacture of soda ash. Extensive works fessor C. Piazzi Smyth, with Notes thereon. are going on up near Pittsburg, in this State. The process w. 1. Scott - On the Formation of Ammonia from Nitrogen

W. Willis-On the Aniline Process in Photography. used is the Danish-i.e., boiling in lime and precipitating the A1,0, by CO,. My informant is one of the capitalists w. L. Scott-On the Presence and Functions of Ammonia

in the Atmosphere. of the company:

I think if the cryolite can be obtained in sufficient or its Homologues in the Blood. quantity the importation of soda ash and caustic soda into J. C. Bowring-On the Preservation of the Sheathing of this country is at an end, or rather will be. I fancied our Ships, and Extraction of Silver from Sea Water, by manufacturers were pretty smart fellows, but they have

Means of Electricity. let the Yankees get ahead of them in this case. All Eng. J. C. Borring-On the Direction of the Electric Current. lish manufacturers must look well to themselves, as the A. HillOn the Sanitary and Economical Aspects of the Americans are following very close at their heels, in

Sewage Question. some cases tripping them up. I am, &c. H. B.

H. Bird-Observations on the Utilisation of Sewage, as Philadelphia, U.S., Auguat 30.

conducted at Stroud, and on the Growth of the Sewage


ANSWERS TO CORRESPONDENTS. Antozone. In March last, a paragraph was forwarded to us announcing, with much circumstantiality, All Editorial Communications are to be addressed to the EDITOR the discovery by Schönbein of a means of isolating antozone, and Advertisements and Business Communications to the PUBLISHER, at and describing some of the properties of the gas. This we

the Office, 1, Wino Office Court, Fleet Street, London, E.C. Private published, accompanying it with a remark distinctly inti

letters for the Editor must be so marked. mating our doubts of the truth of the story. After searching in vain in the Proceedings of the Munich Academy (to adopt the views of the writers.

In publishing letters from our Correspondents we do vot thereby

Our intention to give both sides of a which we were referred) for Schönbein's original paper, question will frequently oblige us to publish opinions with which we we again stated, in the CHEMICAL News for April 7, our

do not agree. disbelief in the story. Unfortunately, a writer on meteo- Vol. XI. of the CHEMICAL News, containing a copious Index, is now rology seems to have seen the first paragraph, and over- roady, price 118. od., by post, uis. 6d., bandsomely bound in cloth, looked our reservation; and a few weeks ago he referred gold-lettered. The cases for biuding may be obtaiued at our Ofice to the subject in a letter to The Times. This brought a

price 18. 6d. Subscribers may have their copies bound for 28. 6d, it

sent to our Office, or, if accompanied by a cloth case, for 1s. Vols. I. letter from Dr. Roscoe, who, having recently seen Schön- and II. are out of print. All the others are kept in stock. Vol. XII. bein, learnt from his own lips that no such discovery had commenced on July 7, 1865, and will be complete in 26 numbers. been made. Apropos to this, our friendly contemporary the Reader inserts the following paragraph :

Anxiou8.-A reply next week.

Thallium. --Tho observations are new. Will our correspondent “ According to a letter in The Timos of Monday last, send a note for publication? signed by Professor Roscoe, the mory of the supposed

W.G.-1. Phillips' Mineralogy," last edition. 2. Bolley and Paul, decomposition of oxygen, said to have been made by Pro

Technical Analysis." 3. Of Williams and Norgate, Honrietta Stret, fessor Schoenbein, was simply a canard sent to The Chymical Microscopical Society.-We are sorry to say that we know of no News some few weeks ago by some wag. Professor Schoen- Society that admits ladies to its ordinary evening meetings. bein, at the recent meeting of Swiss scientific men, at shortly. The Bonn laboratory is expected to be ready in a couple of

C. P., Notting-hill.-We shall probably have moro of the reports Geneva, expressed himself much amused at the credulity years. We will endeavour to obtain the terms of the foreign schools

Covent Garden.

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