r ] 
V. 
■Fan^wieten, His ideas about the fmall-pox being communicable to the foetus in the 
womb, p* 136. 
Vegetable, Remarks on vegetable poifons, p. 164. 
Vegetables, An alkali from the allies of, after their acid has been altered by a com- 
plete put refaction, p. 330. 
Ventaroii , under the palace of Ottaiano, defcribed, p. 72. 
Fcfuvius, Account of an eruption of, in Augufi, 1779, p. 49* Sketch of its hiflory 
iince 1767, p. 43. Account of an eruption of, in May, 1779, P* 45 * Remarkable 
circumfiance of Sir William Hamilton’s walking acrofs a fiream of lava without be* 
mg hurt, p. 46* Stones, fcoriae, and allies Ihot up 2000 feet, p. 30. Account of 
fome uncommon filaments of vitrified matter fliot up with thele afib.es, p. 31. So. 
Melancholy condition of the inhabitants of Ottaiano and Caccia Bella after an erup- 
tion of, p. 66. Fall of allies at 100 miles difiance, p. 68. Changes in the face of, 
by the lafi eruption, p. 77. 
Vince-, Mr. Inveftigation of the principles of progrefiive and rotatory motion, p. 346. 
Viper, The poifon of, fuppofed to be fatal when fwallowed in large quantities, p. 171, 
Effential difference between it and the American, p. 1 74. Analogy between them 
in a particular infiance, p. 179. Activity of the poifon of vipers not lelfened by 
mineral acids or alkalies, p. 181. Its poifon aCts quicker than the poifon of 
Ticunas, p. 187. Farther comparifon between thefe two poifons, p. 188. Experi* 
ments on animals with the poifon of the, p. 189. Farther analogy of its poifon with 
-American poifon,, p. 190. 192. 
Vitrifications « Some very curious, in the eruption of Vefuvius in 1779, p. 83 , 
W* 
Wafiall, Mr. His account of Mrs. Ford’s cafe, p. 129* 
Water . Experiments to deprive fealing-wax of its electricity by, p. 2:7. A glaft tube 
deprived of its electricity by it, ibid. How cooled by the blacks at Senegal, 
p. 484. 
Wax , Sealing, Experiment to deprive it of its eleCtricity by Water, p. 26, 
Weather, See Meteorology, Account of it in 1779, p. 473. At Senegambia, during the 
prevalence of a fatal putrid diforder there, p. 478. Great change of, had no effeCt 
-on the barometer at Fort James, Gambia, p. 490® Journal of it at Senegambia, in 
W 8 > 1 7 79 j P’ 49 * < 
Wiijfin, 
