Silicon halides and pyridine, aceto-
nitrile, &c., 19

tetrachloride, benzyl and ethyl
derivatives of, 92
Silicotetrapyrrole, 18
Silver and lead, relative stability
of corresponding compounds
of, 252

and thallium, re determination

of electrolytic potentials of, 21
atomic weight, 17, 54, 64, 69, 76
solution, action of antimony
hydride on dilute, 312
Simonsen, J. L.. and W. H. Per-
kin, jun (See Perkin, W.H,
jun.)

and R. Robinson (See Robin-
son, R)

Simpson, E. S., analysis of ores
of tantalum, 243.

tan alum and niobium in Aus-
tralia, 49.77
Sindall, RW," Manufacture of
Paper" (review) 311
Slator, A., and D. F. Twiss, che-

mical dynamics of the reac-
tions between sodium th o-
sulphate and organic halogen
compounds, 20
Smedley, Ida, constitution of the

carboxyl group, 82
relation between chemical con-
stitution and optical proper-
ties of the sromatic a- and -
diketones, 82

Smiles, S., and E. du B. Barnett.
(See Barnett, E. du B.)
and H. T. Clarke. (See Clarke,
H. T.)
Smith, Alice E., and K. J. P.
Orton (See Orton, K. J. P.)
C. A., "Suction Gas Plants"
(review), 262

S. W. J., action between metals
and acids, and the conditions
under which mercury causes
evolution of hydrogen, 187
T., and A. Campbell. (See
Campbell, A)

Smythe, J. A., benzyl sulphoxi le,

(cis

Spark, are and induction, be-
haviour of fluorine towards

nitrogen, oxygen, and chlor-
ine in, 240
Spectra, absorption, and consti-
tution of pyridine and various
derivatives, relationship be-
tween, 81

and isomeric change, relation-
ship between, 81

of dissolved dyes, influence of
their state in solution on,
164

of halogen, nitro-, and methyl-
derivatives of camphor, 8t

of nitrates in relation to ionic
theory, 245

of parabenzoquinone, quinol,
and quinhydrone, 20
Spectroscope, echelon, 308
Spectrum, measurement of rota-

tory dispersive power in the
ultra-violet regions of the, 13
of scandium and relation to solar
spectra, 14

"Spheres, Massing of" (review),

substances with, 192

new method of determining
constitution of, 203
Sahm, E R., and O. P. Watts.
(See Watts, O. P.)
Sulphate, cuprous, 283

solutions, solubility of cupric
hydroxide in ammoniacal, 106
Sulphites, haloid, polymerisation
as a cause of difference of
colour of, 119
Sulphoxides, diphenylamine, in-
tramolecular rearrangement
of, 141

Sulphur as a cause of corrosion in
steel, 131

atomic weight, 69

compounds, relation between
refractive power and chemical
activity of, 246
chloride, action
on metallic

oxides, 103

dioxide, and hydrogen dioxide,
production of ozone in inter-
action between, 307
monochloride, action on metal-
loids and metals, 35
on salts of organic acids, 308
Suprarenal gland, producing pure

solution of effective principle

view), 227

Steel, sulphur as a cause of corro-
sion ia, 131

"Steels, Steel making Alloys,

and Graphite, Rapid Methods
for the Chemical Analysis of
Special" (review), 189
Steels, gases disengaged by action
of cupric salts on, 276
Stevens, G. J, Massing of
Spheres" (review), 47

H. P., and C. Beadle. (See
Beadle, C.)

83, 130, 249, 310

of Public Analysts, 75

Soda, caustic solutions, change in

specific gravity of, 147

Sodium and potassium alloys, for-

mation of liquid, 59
atomic weight, 69

in river and rain waters, 253
acetate, solubility of lead sul

phate in concentrated solu-
tions of, 236

amylate, reductions with, 299
azide, and benzhydroximic
chloride, interaction, gr
sulphite, aqueous, physical pro-
perties of, 297
thiosulphate and organic halo-
gen compounds, chemical
dynamics and reactions be-
tween, 20

Soils, application of cobalti-
nitrite method to estimation
of potassium in, 7
presence of a cholesterol sub-
stance in, 53
Solids, miscibility of, 105
Solution, laws of perfect, 40, 52,

63.74

of effective principle of supra-
renal gland or paranephros,
producing pure, 8,
"Solutions, Solid, and Isomor-
phism" (review), 70
Solutions, concentrated, osmotic
pressure of, 40, 52, 63, 74
investigating dissociation equil-
bria in, 237
photosensitive, action of B-rays
on, 106

theory of, 89

Solvents and fluorescence, colour
of, 216

vances in Organic Chemistry"
(review), 57

Stobbe, H., colour of fluorescence
and solvent, 216

light reactions of white and
yellow diphenyloctatetrene,
191

with

Stoddard, J. T., "Quantitative
experiments in General Che-
mistry" (review), 84
rapid electro analysis
stationary electrodes, 292
Stopford, F., "Toil of Life" (re-
view), 117

Strontium, atomic weight, 69
nitride, formation, 4
Strutt, R. J., leakage of helium
from radio-active minerals,
145
Substances, indolic, colour reac-

con-

tions with sugars, 192
optically active, which contain
no asymmetric atom, 166
organic, determining chemical
affinity of, 115
Sudborough, J. J., and M. J. P.
Davies, esterification
stams of substituted acrylic
acids, 246
and J. M. Gittins, esterification
constants of substituted
acrylic acids, 105
and H. Hibbert, estimation of
primary, secondary, and ter-
tiary amines, 142
"Sugar" (review), 298
"Sugar Solutions, Densities of
at different Temperatures"
(review), 48
Sugars and allied substances,
notation for indicating con-
figuration of, 124

and trans) and their combina-
tion, 264
Tetraketopiperazine, 140
Tetravalency of oxygen, 109, 185
Thallium and silver, re-determin-
ation of electrolytic potentials
of, 21

atomic weight, 69
volatility of, 119

volumetric and gravimetric esti-
mation in alkaline solution,
304

"Thermochemical

Constants,
Calculation of" (review), 263
Thermo-chemical potential as a
measure of chemical affinity,
59
Tho-oxalates, 295

Thiotetrahydroquinazolines, 141
Thomas, , and A G. Perkin.
(See Perkin, A G)

and W. P. Bloxam, indican.
236

J., isolation of aromatic sul-
phinic acids, 116

Thomlinson, J. C., affinities of the
nitrogen atom, 290
metalloids arsenic and antimony
from a thermochemical
standpoint, 133

method of harmonising the ele.
ments, 298

potential energy of the elements,
34

t-travalency of oxygen, 185
thermo-chemical potential as a
measure of chemical affinity,
59

thermo chemistry of phos -
phorus, 40

Thompson, F. B., and N. L. Geb-
hard. (See Gebhard, N. L.)
H. B., and N. L. Gebhard. (See
Gebhard, N. L.)

K. J., and A. Hantsch. (See
Hantsch, A.)

S. P., and E. W. Moss, self-
demagnetising factor of bar
magnets, 143

Thomson, J. J., and J. H. Poynt-

ing (See Poynting, J. H.)
W., reducing action of electro-
lytic hydrogen on arsenious
and arsenic acids. 157
Tho ium, atomic weight, 69
chloride and alkaline chlorides,
anhydrous compounds, 299
preparation, 35

chlorides and oxychlorides, 23
Thornley, T., and M. O. Forster.
(See Forster, M. O.)
Thorpe, J. F., preparation of
methyl II-dimethylcyclo-
pentan 3 4-dione-2: 5-di.
carboxylate, 177

transformation of aliphatic
nitriles into alicyclic imino-
compounds. 82
and S. R. Best.

R.)

(See Best, S.

T. E, detection of white or or-
dinary phosphorus in the ig
niting composition of lucifer
matches, 141

report of committee on atomic
weights, 67
Threlfall, R., apparatus for experi-

ments at high temperatures
and pressures, and its appli-
cation to the study of carbon,
248

Thulium, atomic weight, 69
Tiede, E., T. W. Richards, and
P. Köthner. (See Richards,
T. W.)

Tin and antimony, separation, 300
atomic weight, 69
pyrophoric, 132

-copper-aluminium, liquidus
curves of ternary system,
295

nitride, 132
phosphides, 203

Tinkler, C. K., colour and con-
stitution of alkyl iodides of
cyclic bases, 237
Titanium, atomic weight, 69
tantalum, and niobium, 1, 25

hydrogenation, 23

series, cause of colour in, 311

Triphenylsilicol, action of fuming
sulphuric acid on. 139
Tropeines, relation between che.

mical constitution and physio-
logical action in, 297

Tropine and derivatives, affinity

values of, 19

Tschelinzeff, W., and W. Kepo-

waloff, ether-oxonium dibro-
mide, 312
Tachilikin, M., determination of
tungsten, 300
Techugaeff, L., selenous mercap-

tans and derivatives, 119
Tucker, W. S., high-potential

primary battery, 154
Tungsten, atomic weight, 69

determination, 300
Turner, T.,
"Practical Metal-

lurgy" (review), 47
W. E. S.,
A. Findlay, and
Gertrude E. Owen. (See
Findlay, A.)
Tutin, F., isoamygdalin and the
resolution of its hepta-acetyl

derivatives, 233

and H W. B. Clewer, chemical
examination of eriodictyon, 80
Tutton, A. B. H., use of wave
length rulings as defining lines
on standards of length, 305,
wave-length
comparator

UR

atomic weight, |

121

ates, 24

105

133

Von Juptner, H., "Heat Energy
and Fuels" (review), 239
Von Splawa-Neyman, H., and C.
Harries. (See Harries, C.)
Vulcanisation tests on plantation
rubbers, 249

Vulquin, E., and L. Roger. (See
Roger, L)

WAHL, A., indigoid colouring

matters derived from phenyl-
isoxazolone, 156

and P. Bayard, new isomer of
indigo, 216

Walden inversion, experiments

on, 140

Walker, J, and T. Blackadder,
combustion analysis, 5.
Wallach, O., W. H. Perkin, and
(See Perkin,
W. J. Pope.
W. H.)

Water

Walpole, G. S., simple gas-drying
apparatus, 178
Analysis,
"Industrial,
Laboratory Notes on" (re-
view), 227
"Water, its Origin and Use"
(review), 48

Water and aniline, experiment to

illustrate temperature of equal
density of, 144

and normal butyric acid, solidi-
fication of mixtures of, 299
chemical action of penetrating
rays of radium on, 211
decomposition by radium salts,

Waxes of conifers, 35
analytical investigation of
Wedekind, E., and S. J. Lewis,
zirconium metal, 116
chlorine generated by potas-
sium permanganate, 115
"Weights, Catalogue of Balances
and" (review), II
Weil, H., reduction of salicylic
acid to salicylic aldehyde, 72
Weitzmann, C., Dorothy Harrop,
(See
V. Norris.
R.
Harrop, D.)
Werner, A., conversion of hexam-
minetrioldicobaltic salts into
octamminedioldicobaltic salts,

and

and H. Mountain, studies in
the barbituric acid series, 234
Organische
Wichelhaus, H.,
Farbstofte" (review), 263
Wiesbaden Chemical Laboratory,

O. N., evolution in applied
chemistry, 277.
Wolokitin, A., and C. von Girse-
wald. (See von Girsewald,
C.)
Woltereck, H., synthesis of am-
monia by means of peat, 48
Women and the Fellowship of the

Chemical Society, 18, 67. 70
Wood, J. K., and Emma A. Ander-
son, constitution of the salts of
barbituric acid, 248
Woods, irritant, examination of,
247

Woodward, C J., "A B C Five-
figure Logarithms " (review),
Titherley. (See Titlerley,
Worrall, Elizabeth, and A. W.

X-rays, transformations of, 237
want of symmetry shown by
secondary, 237.

Xenon, atomic weight, 69
Xylyls, bromides of, researches on
magnesium derivatives of, 288

Zerr, G., and R. Rübencamp,
Colour Manu-
"Treatise on
facture" (review), 11
Zinc, atomic weight, 69
substitution of magnesium for
in the synthesis of unsaturated
alcohols, 123

syntheses by means of mixed
derivatives
organo-metallic

of, 180

Zink, W. A. H., and A. E. Hill.
(See Hill, A. E.)
Zirconium, atomic weight, 69
metal, analytical investigation
of, 116

Zumbusch, E., and L. Vanino.
(See Vanino, L.

END OF VOLUME XCIX.