626 
URE (DR ANDREW), experiments on the relation 
between muriatic acid and chlorine. _ viii. 329. 
UTERINE IRRITATION, on, and its effects on 
the female constitution. ix. 365. 
VEGETABLE IMPRESSION, description of a, found 
in the Quarry of Craigleith. ix. 235. 
VENDACE, observations on the natural history of 
the. xii. 462. 
VERBS, theory of the moods of. L, C. ii. 198. 
VERB, conjectures on the analogy observed in the 
formation of some of the tenses of the Greek verb. 
ix. 481. 
VINCE (REV. §.), account of a very extraordi- 
nary effect of rarefaction, observed at Ramsgate. 
vi. 245. 
VIRGIL, remarks on some passages of the 6th book 
of the Aneid of. L. C. ii. 33. 
VIRLY (PRESIDENT), letter on the use of caustic 
alkali in the cure of gravel. H. ii. 22. 
VISION, on an anomalous case of, with regard to 
colours. x. 2538. 
on single and correct, by means of double and 
inverted images on the retine. xiii. 472. 
VITRIFIED FORT, notice of an undescribed, in the 
Burnt Islands, in the Kyles of Bute. x. 79. 
VOLCANIC ROCKS, abstract of a paper accompany- 
ing a suite of, from the Lipari Islands, presented to 
the Royal Society. xii, 531. 
VOLTAIC ELECTRICITY, on the action of, on Al- 
cohol, ether, and aqueous solutions. xiii. 315. 
WALKER (DR JOHN), experiments on the motion 
of the sap in trees. P. C. i. 3.» 
WALLACE (PROFESSOR WILLIAM), some geo- 
metrical porisms, with examples of their application 
to the solution of problems. P. C. iv. 107. 
development of a certain algebraic formula. 
v. 251. 
new series for the quadrature of the conic sec- 
tions, and the computation of logarithms. vi. 269. 
investigation of formule, for finding the lo- 
garithms of trigonometrical quantities from one 
another. x. 148. 
proposed improvement in the solution of a 
case in plane trigonometry, x. 168. 
account of the invention of the pantograph, 
and a description of the eidograph. xiii. 418. 
WATER, experiments on the expansive force of 
freezing water. P. C. ii, 23. 
experiments on the contraction of water by 
heat. v. 379. 
on, as a constituent of salts. xiii. 297. 
INDEX. 
WATER, observations on the junction of the fresh 
water of rivers with the salt water of the sea. Rey. 
Dr J. Fleming. viii. 507. 
WEATHER, abstract of a register of the weather 
kept at Branxholm for ten years, from 1774 to 1783. 
P. C. i. 203. 
abstract of a register of the, kept at Hawkhill, 
from 1771 to 1776. P. C. i. 338. 
WERNER, remarks on the transition rocks of. viii. 109 
WHALE, notice respecting the vertebree of a, found 
in a bed of bluish clay, near Dingwall. x. 105, 
WHINSTONE, experiments on. y. 43. 
chemical analysis of three species of. v. 76. 
WILLIAMS (REV. ARCHDEACON), on the force 
of the Latin prefix vee or ve in the composition of 
nouns and adjectives. xiii. 63. 
on one source of the non-Hellenic portion of 
the Latin language. xiii. 494. 
WILLIAMS (MAJOR), experiments on the expan- 
sive force of freezing water made at Quebec.in the 
years 1784 and 1785. P. C. ii. 28. 
WILSON (DR ALEXANDER), late Professor of 
Practical Astronomy in Glasgow, biographical ac- 
count of. x. 279. 
experiments on the effects of opium on the 
living animal. H. iv. 18. 
WILSON (PATRICK), observation on the solar sys- 
tem. H. i. 28. 
experiments and observations upon a remark- 
able cold which accompanies the separation of hoar’ 
frost from a clear air. P. C. i. 146, 
account of certain motions which small lighted 
wicks acquire, when swimming on a basin of oil. 
P. C. iv. 163. 
WINDISCHGRATZ (COUNT DE), his problem 
proposed for the diminution of the number of law- 
suits by some required method. H. i. 837-45. 
report and judgment on his problem. H. ii. 26. 
WINE, method of making a, called by the Tartars 
Koumiss. P. C, i. 178. 
WITHAM (HENRY), description of a fossil tree dis- 
covered in the Quarry of Craigleith, near Edin- 
burgh. xii. 147. 
WORM, account of a non-descript (Ascaris pellu- 
cidus), found in the eyes of horses in India. ix. 107. 
WRIGHT (DR WILLIAM), botanical and medical 
account of the Quassia simaruba. P. C. ii. 78. 
YOUNG (WALTER), an essay on rythmical mea- 
sures. ii. 55. 
ZEOLITE, chemical analysis of an uncommon species 
of. v. 293, 
END OF VOLUME XIII. 
