388 
GENERAL INDEX. 
Solution, W. Durham on, 1887, 655 
- the bibliography of, report on , 1887, 
57 ; 1888, 54 , 1889, 53 ; 1890, 310 
-of copper in acids, the rate of, V. 
H. Veley on, 1888, 638 
*-- of difficultly soluble substances, 
A. H. Allen on a method of effecting 
the, 1875, 37 
- the molecular refraction of sub¬ 
stances in. Dr. Gladstone on, 1890, 322 
-the molecular weights of solids and 
salts in, Prof. W. A. Tilden on, 1885, 990 
-the nature of, Prof. S. U. Pickering 
on, 1886, 581 
-the nature of, the bearing of the 
thermal phenomena of neutralisation 
on, Dr. W. W. J. Nicol on, 1887, 656 
- the nature and properties of, report 
on, 1887, 55 ; 1888, 93 ; 1889, 53 ; 1890, 
3 IQ 
--- the phenomena and theories of, Prof. 
W A. Tilden on, 1886, 444 
-some phenomena of, illustrated by 
the case of sodium sulphate, Prof. W. 
A. Tilden on, 1884, 675 
-proportions in which bases and acids 
in a, combine with each other, Prof. 
G. Wiedemann on the, 1874, 132 
- a theory of, W. W. J. Nicol on, 
1884, 675 
- the theory of, Dr. T. S. Hunt on, 
1888, 636 
-- the theory of, discussion on : S. U. 
Pickering , 1890, 311, 337; Dr. J. IT. 
Gladstone, 322; Dr. Arrhenius, 323; 
Dr. Walker, 325; Prof. Pamsiy, ib. ; 
Dr. Armstrong, ib. ; Prof. FitzGerald, 
326; Prof. 0. J. Lodge , 330; Prof. 
Ostwald, 331 ; Prof, van Y Hof, 335; 
TD. N. Shaw, 336 
- a partial separation of the con¬ 
stituents of a, during expansion by rise 
of temperature, £rof. J. W. Mallet on, 
1887, 649 
Solutions, the freezing-points of, an 
apparatus for the determination of, P. 
J. Hartog and J. A. Harker on, 1890, 
779 
-the physical constants of. Profs. W. 
L. Goodwin and D. H. Marshall on, 
1884, 679 
-reciprocal decomposition in, viewed 
with reference to time, J. H. Gladstone 
on, 1870, 57 
- physical constants of, especially the 
expansion of saline solutions, report on 
the investigation of certain, 1885, 261 ; 
1886, 207 ; 1887, 48 
_ supersaturated saline, C. Tomlinson 
on the behaviour of, when exposed to 
the open air, 1871, 82 
- vapour pressures and refractive in¬ 
dices of salt, report on, 1885,284 ; 1886, 
204 
Solutions, volumes of, J. A. Ewing and J. 
G. Macgregor on the, 1877, 40 
^Solvents, new, for gold, silver, platinum. 
See., T. Fairley on, with an explanation 
of the so-called catalytic action of 
these metals and their salts on hydro¬ 
gen dioxide, 1875, 42 
Somali coast, Capt. Miles on the, 1871, 
186 
-and Galla countries, E. G. Eaven- 
stein on the, 1888, 595 
Somerset, some points of interest in the 
geology of, W. A. E. Ussher on, 1888, 
659 
Somersetshire cider, J. Higgins on, 1888, 
759 
- Foraminifera of the Middle and 
Upper Lias of, Henry B. Brady on the, 
1864, 50 
-Pliocene fauna of the caverns and 
river-deposits of, W. Boyd Dawkins on 
the newer, 1864, 53 
Somervail (A.) and H. Fox on the 
occurrence of porphyritic structure in 
some rocks of the Lizard district, 1887, 
708 
Somerville (A. A l), experiments at Eton 
College on the degree of concordance 
between different examiners in assign- 
ing marks for physical qualifications, 
1889, 477 
Somme and Ouse, E. A. C. Godwin- 
Austen on the Alluvial accumulation 
in the valleys of the, 1863, 68 
Sonora earthquake, the, of May 3, 1887, 
Dr. T. S. Hunt and J. Douglas on, 1887, 
712 
Sopwith (A.), electric lighting at Can¬ 
nock Chase collieries, 1886, 814 
-(T.), report on the manufacture of 
lead, copper, zinc, antimony, S,'c., in the 
Newcastle-on-Tyne District, 1863, 715 
- on a section of the strata from 
Hownes Gill to Cross Fell, 1863, 88 
Sorbit, Prof. Delffs on, 1871, 69 
Sorby (H. C.) on the cause of the differ¬ 
ence in the state of preservation of 
different kinds of fossil shells, 1862, 
95; on the comparative structure of 
artificial and natural igneous rocks, 
96 
-on models illustrating contortions 
in mica-schist and slate, 1863, 88 
-- on the conclusion to be drawn from 
the physical structure of some meteor¬ 
ites, 1864, 70 ; on microscopical photo¬ 
graphs of various kinds of iron and 
steel, 189 
- on the microscopical structure of 
crystals, 1865, 136; on the microscopi¬ 
cal structure of meteorites, 139 
-on a new form of spectrum-micro¬ 
scope, 1865, 11 
- on spherules in meteorites , 1868, 418 
