INDEX. 
Theorem , binomial , demonstration of, by the principles of multi- 
plication, - - - 298 
Thermometer , register of, at Lyndon, in Rutland, - 410 
Transit instrument used in a trigonometrical survey, description of, 419 
Trees , on grafting them, - - - 290 
Twilight of Venus, observations on, - - 126, 145, 156 
V 
Vapour mephitic, remarks on that which follows an eruption of 
Mount Vesuvius, - 106,113 
Venus y . new observations on, - - - 117 
■ on the rotation of, - .126,149 
on the mountainous inequalities of, - ' - 126, 149 
on the twilight of her atmosphere, - 126, 145, 156 
Vesuvius, account of an eruption of that mountain, - 73 
Vince, the Rev. Samuel, A. M. The Rakerian lecture. Ob- 
servations on. the theory of the motion and resistance of fluids ; 
with the description of the construction of experiments, in 
order to obtain some fundamental principles, - >24 
Volta , Mr. Remarks on some assertions made by him, 249, 252 
W v - 
Walker, Mr. Richard. Observations on the best methods of 
producing artificial cold, - 270 
Water, on freezing it by ether, - - 286 
Weather of the year 1794, remarks on, - - 411 
Wells, William Charles, M. D. Observations on the in- 
fluence which excites the muscles of animals to contract, in 
Mr. Galvani’s experiments, - 246 
Williams, Lieut. Col. Edward. Account of the trigonome- 
trical survey carried on in the yeairs 1791, 1792, 1793, and 
1794, - - - - 414 
WootZy on a kind of steel so called, - - 322 
mechanical and obvious properties of, - - 323 
specific gravity of, - 324 
effects of fire on, - - - - 326 
effects of fire and oxygen gaz conjointly on, - 329 
experiments on, with diluted nitrous acid, - 330 
