432 
GENERAL INDEX. 
theory of chemical combinations, 1875, 
257 
Tremenheere (Colonel) on the physical 
geography of the Lower Indus, 1866, 
1 17 
Tremlett (Adm. F. H.) on the lapidary 
sculptures of the dolmens of the Mor- 
bihan, 1884, 923 
Trent , on tidal observations made on the 
river , in 1864, 1864, 129 
*Treub (Dr. M.), some words on the life- 
history of Lycopods, 1887, 763 
Trevelyan (Sir W. C.) on the plant-beds 
of North Greenland, 1869, 1 
Triangle, Prof. A. Cayley on the problem 
of the in- and circumscribed, 1864, 1 ; 
1870, 9 
Triangles, W. M. Adams on the men- 
surator, a new instrument for the solu¬ 
tion of, 1872, 59 
-plane, Thomas Dobson on the gene¬ 
ral forms of the symmetrical properties 
of, 1861, 2 
Trias, physiography of the Lower, T. M. 
Reade on the, 1889, 566 
-section across the, recently exposed 
by a railway excavation in Liverpool, 
G-. H. Morton on, 1888, 489 
Triassic rocks of West Somerset, W. A. E. 
Ussher on the, 1887, 7 r 9 
-sandstone around Liverpool, G. H. 
Morton on the glaciated condition of 
the surface of the, 1870, 81 
Tribe (A.) on the precipitation of silver 
by copper, 1872, 84 
-note on a new method of measuring 
certain chemical affinities, 1881, 59 2 
-and J. H. Gladstone, experiments 
on chemical dynamics, 1871, 70 ; on the 
corrosion of copper plates by nitrate of 
silver, 29 
_on the mutual helpfulness of 
chemical affinity, heat, and electricity in 
producing the decomposition of water, 
1872, 75 
-—. - electrolytic experiments on 
some metallic chlorides, 1874, 58 
-on the action of the copper-zinc 
couple, 1875, 43 ; on the augmentation 
of the chemical activity of aluminium 
by contact with a more negative metal, 
ib. 
-on aluminium alcohols, 1878, 
508 
--electrolysis of dilute sulphuric 
acid in secondary batteries, 1883, 464 
Trichodesmium, Dr. Collingwood on, 1867, 
81 
Trigonocephalus, William Turner on, 
cranial deformities—, 1864, 129 
Trigonometrical series, summation of a 
class of, J. W. L. Glaisher on, 1879, 
269 
-from elliptic function formulas, the 
deduction of, J. W. L. Glaisher on, 
1880, 477 
Trigonometrical identity involving pro¬ 
ducts of four sines, note on a, by J. W. 
L. Glaisher, 1880, 484 
- Survey of India, account of the 
levelling operations of the Great, by 
Major A. W. Baird, 1885, 1123 
*Trilobites, notes on the homologies of 
the, by C. S. Bate, 1863, 191 
-Olenoid, from the lowest fossiliferous 
rocks of Wales, J. W. Salter on some 
new forms of, 1864, 67 
* -one of the earliest forms of, exhi¬ 
bited by Prof. Harkness, 1871, 100 
——- the discovery of, in the upper green 
(Cambrian) slates of the Penrhyn 
Quarry, Bethesda, near Bangor, North 
Wales, Dr. H. Woodward on, 1887, 696 
Trimen (H.) on the recent occurrence of 
Lavatera sylvestris, Brot., in the Scilly 
Islands, 1877, 106 
-*on the flora of Ceylon, 1886, 688 ; 
note on Helopeltis antonii, Sign., in 
Ceylon, 711 
- on the steps taken for establishing a 
botanical station at Peradeniya, Ceylon , 
1887 , 96 ; 1888 , 421 ; 1889, 114 ; 1890, 
470 
-(Roland) on a curious South African 
grasshopper, Tracliypetra bufo (White), 
1871, 134 
- on the flora and fauna of the Came- 
roons mountain , 1887, 73 
Trimerella, T. Davidson and Prof. W. 
King on the genera Dinobolus, Mono¬ 
mer ella, and, 1872, 100 
^Tristram (Rev. H. B.) on some elucida¬ 
tions of the geological history of North 
Africa, supplied by its lacustrine fauna, 
1863, 107 ; *on certain facts on the 
variation of species, which point to 
West Asia as the centre of creation for 
the Palmarctic Region, ib. 
* - on the formation of the Jordan 
Valley and the Dead Sea, 1864, 191 ; 
*on the geology of Palestine, ib. ; *on 
the ornithology of Palestine and the 
peculiarities of the Jordan Valley, ib. 
-on a bone-breccia with flints in Le¬ 
banon, 1864, 72 ; on the sulphur and 
bitumen deposit at the south-west 
corner of the Dead Sea, 73 ; on the 
physical and political geography of the 
Jordan valley and eastern Palestine, 
148 
- on extinct birds of the Mascarene 
Islands, 1866, 401 
- on the zoological aspects of the 
grouse-disease, 1867, 97 ; *on the 
districts of Palestine as yet imperfectly 
explored, 131 
- on the practicability of establishing 
a ‘ close time ’ for the protection of inr 
