Abstract Published this Week. 237,100. Anthraquinone derivatives. Fierz, H. E., 2, Bondlerstrasse, Kilchberg, near Zurich, Switzer land. The Pure 1-nitro-2 methylanthraquinone is obtained from the crude product by heating its aqueous suspension with a sulphite, e.g. sodium sulphite. The isomers pass into solution in the form of sulphonic acids and can be removed by filtration. purified product gives immediately with sodium sulphide pure 1-amino-2 methylanthraquinone, the bromine and other derivatives obtained therefrom being stated to melt at 40-50° C. higher than has hitherto been stated. Messrs. Rayner and Co., will obtain printed copies of the Published Specifications only, and forward on post free for the price of 1/6 each. The Latest TRADE MARKS The following list of latest Trade Marks Published, is specially prepared for The Chemical News," by Messrs. Rayner and Co., Regd. Patent and Trade Mark Agents, of 5, Chancery Lane, Londen, who will give all information free regarding the Registration of British and Foreign Trade Marks. DRONAMIN. 452,522.-Chemical substances used for Agricultural, Horticultural, Veterinary and Sanitary Purposes. -Deutsche Gold- und - Silber Scheideanstalt Vorm Roessler, Weissfrauenstrasse 7 and 9, Frankfurt a/M., Germany. September 2nd, 1925. WIC. 460,827.-Chemical Substances prepared for use in Medicine and Pharmacy. Hedley Walker Holland, 52, Semilong Road, Northampton. September 2nd, 1925. FRACASTAN. 452,524.-Chemical Substances used for Agricultural, Horticultural, Veterinary and Sanitary Purposes. ---Deutsche Gold- und Silber Scheideanstalt Vorm Roessler, Weissfrauenstrasse 7 and 9, Frankfurt a/M., Germany. September 2nd, 1925. SEDIN. Journal of Chemical Education is published under the auspices of the Division of Chemical Education of the American Chemical Society. It is issued on the fifteenth of each month and contains one hundred or more pages devoted to articles of general informational nature, and articles relating to the problems of teaching in the university, college and sec ondary school. Articles of how chemistry is presented in different countries are frequently published. It is the world's only JOURNAL OF CHEMICAL EDUCATION. Publisher's Announcements. The following Books can be obtained from Rea & Inchbould, Merton House, Salisbury Square, London, E.C.4.: CONFESSIONS OF GREAT SOULS, By the REV. J. E. RoscoE, M.A. This striking work gives extracts (with comments) from the opinions of 50 great writers and thinkers in all ages on Religion. These include Bacon, Balzac, Burns, Carlyle, Cicero, Dante, Darwin, Dickens, Emerson, Faraday, Homer, Huntley, Johnson, Longfellow, Maeterlink, Milton, Napoleon, Newton, Pope, Ruskin, Shakespeare, Socrates, Spenser, Thoreau, Wordsworth, etc., etc. The work is handsomely bound, and has a copious, index for easy reference, and the work, containing as it does the gems of thought on some of the world's greatest thinkers, and will form an acquisition to any library. By post, 5/- net. 300 QUESTIONS AND ANSWERS ON LATIN GRAMMAR AND COMPOSITION. By J. E. ROSCOE, M.A. (Author of Dictionary of Educationists, Theological Education, etc., etc.) Confessions of Great Souls, History of An indespensable Book for the Student or anyone desirous of rapidly and easily acquiring a knowledge of the Latin Language. 100 p.p. Post Free, 4/8. NOW GETTING VERY SCARCE. BACK NUMBERS AND VOLUMES WE have FOR SALE a limited number of the EARLIER VOLUMES and NUMBERS of the CHEMICAL NEWS and are prepared to supply orders at the foliowing rates, CARRIAGE EXTRA, (subject to the Volumes or Numbers being in stock at the date when the order is received) : Various numbers, parts of Vols. 117 and 118 (1918/19) are only on sale at 2s. 6d. each. THE GENERAL INDEX TO VOLS. 1 to 100 can still be purchased at £1 1s. All communications should be addressed to the MANAGER, CHEMICAL NEWS |