INDEX. 
STANLEY (JOHN THOMAS), an account of the 
hot springs near Rykum in Iceland. P. C. iii. 127. 
an account of the hot springs near Hankadal 
in Iceland. P. C., iii. 188. 
STERNBERGITE, a new mineral species, descrip- 
tion of. xi. 1. 
STEWART (DUGALD) some account of a boy born 
blind and deaf. vii. 1. 
additional communications respecting the boy 
born blind and deaf. By Dr J. Gordon. viii. 129. 
on his education. By Dr H. Dewar. viii. 137. 
STEWART, D.D. (MATTHEW), biographical ac- 
count of. H.i. 57. 
STEWART (DR MATTHEW), demonstrations of 
some of his general theorems. P. C. ii. 112. 
STONE, on the expansion of different kinds of, from 
an increase of temperature. xiii. 354. 
STRATA, on the vertical position and conyolutions 
of certain, and their relation with granite. Sir J. 
Hall. viii. 79. 
observations on the formation of chalk strata, 
and on the structure of the belemnite. ix. 398, 
on the determination of the position of strata 
in stratified rocks. xii. 363. 
STRONTIAN, account of a mineral from. H. iii. 143. 
STRONTIAN, account of amineral from, and of a pe- 
culiar species of earth which it contains, P. C. iv. 3. 
SUPERSTITIONS of the Highlands, an ode on the 
popular. L. C. i. 63. 
SYNONYMES, an essay upon the utility of defining 
synonymous terms in all languages; with illustra- 
tions by examples from the Latin. L. C. iii, 93. 
TABLE MOUNTAIN, account of the structure of, 
and other partsof the Peninsula of the Cape. vii. 
269. 
TAIT (REV. CHRISTOPHER), account of the peat 
mosses of Kincardine and Flanders in Perthshire. 
E. C, iii. 266. 
TALC, observations on. xi. 852. 
TAYLOR (RALPH), account of repeated shocks of 
earthquakes felt at Comrie in Perthshire. P. C. 
iii. 240. 
TEMPERATURE, obseryations on the mean, of the 
globe. ix. 201. 
on the expansion of stone from an increase of. 
xiii. 354, ; 
THEATRE, account of the German. L. C. ii. 154. 
THERMOMETER, description of an improved. P. C. 
iii. 247. 
description of a, which marks the greatest de- 
gree of heat and cold, from one time of observation 
to another. P. C. iv. 208. 
description of a new register, without any in- 
dex. x. 440. 
THERMOMETRICAL observations made at Leith 
Fort every hour of the day and night, during the 
whole of the years 1824 and 1825. x. 362. 
625 
THERMO-MULTIPLIRR, on the use of the. xiii.446. 
THOMSON (DR THOMAS), chemical analysis of a 
black sand, from the river Dee in Aberdeenshire ; 
and of a copper ore, from Airthrey in Stirlingshire. 
vi. 253. 
experiments on allanite, or anew mineral from 
Greenland. vi. 871. 
chemical analysis of sodalite, a new mineral 
from Greenland. vi. 387. 
on a new combustible gas. xi. 15. 
some experiments on gold. xi. 23. 
some experiments on the milk of the cow-tree. 
xi. 235. 
account of the constituents of various mine- 
rals. xi. 244, 
on the composition of blende. xi. 332. 
on asbestus, chlorite, and tale. xi. 352. 
description and analysis of some minerals. 
xi. 441. 
TIME-KEEPER in the Hall of the Royal Society of 
Edinburgh, notice regarding a. xi. 545. 
TOURMALINE, experiments on the electricity of, 
and other minerals, when exposed to heat. xiii. 27. 
TRAILL (DR THOS. STEWART). account of a mi- 
neral from Orkney. ix. 81. 
TRAILL (DR THOS. STEW ART), electro-magnetic 
experiments and observations. ix. 465. 
TREES, experiments on the motion of the sap in. 
P. C. i. 3. 
TREVELYAN (ARTHUR), notice regarding some 
experiments on the vibration of heated metals. xii.187. 
TREVELYAN (W.C.), on the mineralogy of the Fa- 
roe Islands. ix. 461. 
TRIANGLES, fourtheorems for resolving all the cases 
of plane and spherical triangles. H. iv. 4. 
TRIGONOMETRICAL TABLES OF THE BRAH- 
MINS, observations on the. P. C. iy. 83. 
TRINIDAD, extracts from inspection—report of the 
island of. ix. 98. 
TROY, a dissertation to prove that it was not taken 
by the Greeks. L, C. i. 48. 
TROYE, tableau de la plaine de. _L. C. iii. 3. 
TURNER (DR EDWARD), chemical examination of 
the oxides of manganese. xi. 143, 
TYTLER (ALEX. FRASER), an account of some 
extraordinary. structures on the tops of hills in the 
Highlands ; with remarks on the progress of the arts 
among the ancient inhabitants ofScotland, L. C.xii 3. 
remarks op a mixed species of evidence in 
matters of history. v. 119. 
TYTLER (HON. ALEX. FRASER, LORD WOOD- 
HOUSELEE), memoir of his life and writings. 
viii. 515. 
TYTLER (PATRICK FRASER), historical and criti- 
cal introduction to an inquiry into the revival of the 
Greck literature in Italy, after the dark ages. x. 389. 
TY TLER OF WOODHOUSELEE (WILLIAM), bio- 
graphical account of. H. App. iv. 17. : 
