384 INDEX. 



Twins, never, while infants, so large or strong as children 

 that come singly into the world, and why, i. 386. 



Typhons, spouts so called, seen at land, differ in several re- 

 spects from those at sea, i. 334. 



Tyson (Dr), his description of an ourang-outang, by the 

 name of pigmy, the best and most exact, iii. 280. 



Valerian, a plant of which cats are excessively fond, ii. 393. 



Vampyre, a foreign bat, having the reputed faculty of drawing 

 blood from persons asleep ; and thus destroying them before 

 they awake, iii. 240. See Bat. 



Vapour of metals in mines not so noxious as those of sub- 

 stances with which ores are usually united, such as arsenic, 

 cinnabar, &c. ; fragrance of their smell ; warnings about 

 them, i. 71. Disengaged from water, and attenuated, as- 

 cends into the atmosphere, where condensed, and acquiring 

 weight as it rolls, falls down in a shape suitable to the tem- 

 perature of its elevation, 316. 



Vari, a kind of inaki, last of the monkey kind ; its description, 

 iii. 322. 



Vault, go to vault, phrase used by hunters, when the hare 

 enters holes like the rabbit, iii. 124. 



Vegetables, vegetable earth ; the bed of it, in an inhabited 

 country, must be always diminishing, and why, i. 51. 

 Plant, with a round bulbous head, which when dried be- 

 comes of amazing elasticity, grows near the extremity of 

 that region, on mountains, where continual frost reigns, 

 130. Like fluids and mineral substances, produce air in a 

 copious manner, 271. Totally unprotected, and exposed 

 to every assailant, 348. Those in a dry and sunny soil, are 

 strong and vigorous, not luxuriant ; and those the joint 

 product of heat and moisture, are luxuriant and tender ; 

 different kinds appropriated to different appetites of animals, 

 and why; birds distribute the seeds of vegetables where 

 they fly, 351. Vegetables cover the bottom of many parts 

 of the sea, 352. But few noxious ; that life as much pro- 

 moted by human industry, as animal life is diminished, 357. 

 The sole food of ruminating animals, ii. 222. Animals 

 feeding on vegetables most inoffensive and timorous, iii. 

 118. Some possessed of motion; what constitutes the dif- 

 ference between animal and vegetable life, difficult, if not 

 impossible, to answer, vi. 169. Not possessed of one power 

 which animals have, the actual ability, or awkward attempt 

 at self-preservation, .171. Those called marine grow to a 

 monstrous size, 185. 



Vegetation anticipated in its progress by bees, vi. JOO. 



