INDEX. 
page 
Urinary concretions , observations on, - - 386 
Uterus, experiments in which ova were found in that of rabbits, 197 
V 
Vapour , aqueous, supposed to be the principal cause of the force 
of gunpowder, - - - 233 
on its elastic force, - - 287 
Vision , double, remarks on, - - - 7 
Vulliamy, Mr. Benjamin. An account of the means em- 
ployed to obtain an overflowing well, - - 325 
w 
JV atcr , on the gas produced by passing electric discharges through it, 142 
IVell, account of the means employed to obtain an overflowing one, 325 
Wells, William Charles, M. D. Observations and experi- 
ments on the colour of blood, - - 416 
Williams, Colonel Edward. Account of the trigonometrical 
survey carried on in the years 1795 and 1796, - 432 
Wollaston, William Hyde, M. D. On gouty and urinary 
concretions, - - - - 386 
Z 
Zucchius. His opinion respecting the colours of bodies, 418 
— supposed to be the inventor of the reflecting telescope, 419 
ERRATA. 
Page 259, line 5 below the table, for 436800 read 412529. 
386, at end of paragraph, after lithic add acid. 
393, line 2, for earth read earths. 
397 > line »7*. 
From tbe Press of 
W. BULMER & Co. 
Cleveland- Row, St. James's. 
