INDEX. 
Sun-spots and the chemical elements in 
the sun, Profs. Dewar and Liveing on, 
. 455. 
Switzerland, the Germanic and Rhetian 
elements in, by Dr. J. Beddoe, 574. 
Sylvester (Prof. J. J:) on the involution of 
two matrices of the second order, 430. 
Symmetric functions, Capt. P. A. Mac- 
Mahon on, and in particular on certain | 
inverse operators in connection there- 
with, 409. 
Symons (G. J.) on underground tempera- 
ture, 45; on the proposed publication 
by the Meteorological Society of the 
Mauritius of daily synoptic charts of 
the Indian Ocean’ from the year 1861, 
118; onthe circulation of underground 
waters, 147; on localscientific societies, 
318; *on the completion of the European 
portion of the preliminary meteorolo- 
gical catalogue, 414. 
Synoptic charts, daily, of the Indian Ocean 
from the year 1861, report of the Com- 
mittee for co-operating with the Me- 
teorological Society of the Mauritius 
in their proposed publication of, 118. 
‘Taylor (H.).on standards for use in elec- 
trical measurements, 41. 
Telegraphic intercommunication, W. H. 
Preece on, 650. 
Tertiary flora of the north of Ireland, 
fourth report on the, 209. 
‘Tertiary period, the master-divisions of 
the, by Prof. W. Boyd Dawkins, 490. 
-Testacella Haliotidea, the rare slug, some 
newly-discovered . localities of, E. J. 
Lowe on, 549. 
Thane (Prof.) on the facial characteris- 
tics of the races and principal crosses 
in the British Isles, 306. 
*Thermostat, a simplified, M. W. 
Williams on, 470. 
Thiselton-Dyer (Mr.) on the natural 
history of Timor-laut, 224. 
Thompson (Prof. §. P.) on the workings 
of the proposed revised New Code, 
and of other legislation affecting the 
teaching of science in elementary 
schools, 309; experiments in bolo- 
metry, 401, 
Thomson (J.) on a conglomerate with 
boulders in. the. Laurentian rocks of 
North Uist, Scotland, 498; on a coral 
atoll on the shore-line at Arbigland, | 
near Dumfries, Scotland, 7b. 
ad (J. M.) on chemical nomen- 
clature, 127. 
‘Thomson (Prof. Sir Wm.) on standards 
’ for use in electrical measurements, 41; 
on underground temperature, 45; on 
mathematical tables, 118; on meteoric 
dust, 126; on patent legislation, 316; 
on the determination of a gauge for - 
675 
the manufacture of various small 
screws, 318; *gyrostatic determination 
of the north and south line, and the 
latitude of any place, 405 ; *on a model 
illustrating helicoidal asymmetry, and 
particularly the formation of right- and 
left-handed helicoidal crystals from a 
non-helicoidal solution, zh. 
Thomson (W.) on the development of 
crystals from. transparent glass by the 
action of solvents. upon it, 471; on 
certain molecular movements in the 
vicinity of thin iron plates, 472. - 
Three golden cups, by Miss A. W. Buck- 
land, 565. 
Tibetan frontier, curiosities of travel on 
the, 599. 
Tidal observations, report of the Com- 
mittee for the harmonic analysis of, 49. 
Tiddeman (R. H) on the erratic blocks 
of England, Wales, and Ireland, 136. 
Tides, the attractive influence of the sun 
and moon causing, I. Roberts on, 405. 
——, the physical theory of the, Rey. J. 
Pearson on, with especial reference to 
their diurnal inequality, 405. 
Tilden (Prof. W. A.) on isomeric naph- 
thalene derivatives, 132. 
Timor, some customs prevalent among the 
inhabitants of, H. O. Forbes on, 565. 
Timor-laut, the natural history of, third 
report on, 224. 
, the cranial characters of the in- 
habitants of, Dr. J. G. Garson on, 566. 
Toes of the human foot, the relative 
length of the first three, J. Park 
Harrison on, 562. 
Topley (W.) on the circulation of under- 
ground waters, 147. 
Town life, the influence of, on stature, by 
J. Park Harrison, 568. 
Trias, section across the, recently exposed 
by a railway excavation in Liverpool, 
by G. H. Morton, 489. 
Tribe (A.) and Dr. J. H. Gladstone, 
electrolysis of dilute sulphuric acid in 
secondary batteries, 464. 
Tristram (Rev. Canon) on the survey of 
Eastern Palestine, 308; *on the Jordan 
valley, 591. 
Troad, the geology of the, J. S. Diller on, 
508. 
Trotter (Coutts) on New Guinea, 596. 
Ultra-violet spark spectra, the, emitted 
by metallic elements, and their com- 
binations under varying conditions, 
report on the investigation of, by 
means of photography, 127. 
Underground temperature, sixteenth ra. 
port on the rate of increase of, down- 
wards in various localities of dry land 
-and under water 45 
Underground water in porous strata, the 
Key 
