386 
GENERAL INDEX. 
Smyth (John, jun.) on the rainfall of 
the British Isles, 1875, 91 ; 1876, 172 
.- (Warington W.), Address to the 
Section of Geology, 1863, 59 
,-on the thermal water of the Clifford 
amalgamated mines of Cornwall, 1864, 
70 
Snakes’ eggs, the incubation of, Dr. W. 
Sibley on, 1890, 860 
Snell (W. H.) and C. H. W. Biggs, dis¬ 
tribution by transformers and alternate 
current machines, 1887, 878 
Snelijs (G. J.) on the best method of esta¬ 
blishing an international standard, for 
the analysis of iron and steel, 1889, 50 ; 
1890, 262 
Snipe, the ‘ drumming ’ of the, Capt. W. 
V. Legge on, 1880, 604 
*Snow (Capt. W. P.) on the geographical 
science of Arctic explorations, and the 
advantage of continuing it, 1861, 201 
Snowdon, Dr. A. Schuster on a curious 
optical phenomenon observed on the 
top of, 1873, 40 
Soap, the pedetic action of, Prof. W. S. 
Jevons on the, 1878, 435 
.- bubble, Sir D. Brewster on the 
colours of the, 1867, 6 
* Soaring of birds, mechanical theory of 
the, W. Froude on a, 1876, 31 
Social democracy, the transition to, G. 
B. Shaw on, 1888, 761 
-forces, harmonies and antagonisms 
in the, W. A. Douglass on, 1884, 869 
--reform and industrial conciliation, 
the relations between, L. L. Price on, 
1889, 706 
- regulations in Melanesia, Rev. R. 
H. Codrington on, 1888, 843 
*Socialism, Prof. W. Graham on, 1887, 
852 
- State, an analysis of the current 
conception of, by Prof. H. Sidgwick, 
1888, 760 
Societies, organisation of, nationally and 
locally considered, R. B. Walker on 
the, 1871, 223 
^Society of Arts Patent Bill, Sir F. J. 
Bramwell on the, 1881, 780 
Sociology, Anthropology, and Nationality, 
D. Mackintosh on, 1875, 176 
- notes on classification in, by G. 
Weddell, 1889, 794 
Socotra, the natural history of, report on 
the investigation of 1879, 210 ; IS80, 
212 ; 1881, 194 
- the island of Prof. Bailey Balfour 
on, 1881, 482 
- and the adjacent highlands of Arabia 
and Somali Land, the natural history 
of, report on the investigation of, 1882, 
281 ; 1883, 227 
-notes on, by F. M. Hunter, 1877, 118 
Socotran land and freshwater shells , 
report on, by Lieut.- Col. H. II. Godwin- 
Austen, 1881, 196 
Soda, caustic, J. Y. Buchanan on the rate 
of action of, on a watery solution of 
chloracetic acid at 100° C., 1871, 67 
-L. Kessler on the commercial ad¬ 
vantages of anew carbonate of, 1863 ,43 
—— manufacture of, report on the , 1861, 
109 ; silicate of, 116 ; arseniate of, 117 
-manufacture, W. Gossage on, 1870, 58 
* -manufacture, J. Mactear on, 1876, 
65 
—— manufacture of, Walter Weldon on 
a proposed use of fluorine in the, 1866, 
45 
* -- and chlorine, the manufacture of, 
W. Weldon on, 1884, 679 
^Sodium, A. Smith on, 1876, 68 
* -- action of, on valerianic and similar 
ethers, J. A. Wanklyn on the, 1867, 47 
-alcoholates,the action of, on fumaric 
and maleic ethers, Prof. T. Purdie on, 
1885, 972 
-- alum of Japan, Prof. E. Divers on 
the, 1881, 586 
—— or other soluble aluminates, the 
use of, for softening and purifying 
hard and impure water and deodorising' 
and precipitating sewage, waste water 
from factories, &c., F. M. Lyte on, 
1885, 984 
-derivatives, anhydrous, of the sali¬ 
cylic series, W. H. Perkin on the pre¬ 
paration of some, 1868, 41 
- Dr. J. Janssen sur une nouvelle 
methode pour la recherche de la soude 
et des composes du, par l’analyse spec- 
trale, 1869, 68 
Soil, J. B. Lawes and Dr. J. H. Gilbert 
on the accumulation of the nitrogen of 
manure in the, 1866, 40 
Soils, J. B. Lawes and Dr. J. H. Gilbert 
on some points in connection with the 
exhaustion of, 1861, 84 
-- some points in the composition of. 
Sir J. B. Lawes and Dr. J. H. Gilbert 
on, with results illustrating the sources 
of fertility in Manitoba prairie soils, 
1884, 686 
-Dr. T. L. Phipson on the constant 
increase of organic matter in cultivated, 
1863, 51 
Solar atmosphere, hydrocarbons in the, 
Capt. Abney on, 1881, 524 
- corona, some results of ph otographing 
the, without an eclipse, Dr. W. Huggins 
on, 1883, 346 
- eclipse of December 12, 1871, report 
of the committee appointed to organise 
an expedition for observing the, 187 2,327 
- eclipse, the late total (May 17, 
1882), preliminary account of results 
obtained during, by Dr. A. Schuster 
and Capt. Abney, 1882, 441 
