INDEX. 



Agricola has seen hats made of mole skins, most beautiful, 

 iii. 203. 



Ai, a name of the sloth ; its description, iii. 406. 



Aigues-mortes, town in France, a port in the time of St Louis; 

 now removed more than four miles from the sea, i. 237. 



Air, the only active agent in earthquakes, i. 91. Amonton's 

 calculation of a moderate degree of heat sufficient to give 

 the air amazing powers of expansion, 93. Account of the 

 properties of, 255. 



Air-pump, the experiment of a carp placed under it, v. 15, 16. 

 Fish can live but a few minutes without air, 16. 



Air-bladder in fishes described, v. 16. 



Albatross, a bird of the gull kind ; its description by Edwards ; 

 is an inhabitant of the tropical climates, and other regions, 

 as far as the Straits of Magellan in the South Seas ; is the 

 most fierce and formidable of the aquatic tribe ; it chiefly 

 pursues the flying-fish, forced from the sea by the dolphins ; 

 Wicquefort's account of this bird ; it seems to have a pecu- 

 liar affection for the penguin, and a pleasure in its society ; 

 its nest, iv. 367. 



Albouras a famous volcano near Mount Taurus, i. 86. 



Alder, hares will not feed on the bark of it, iii. 121. 



Algazel, the seventh variety of gazelles with M. Buffon, ii. 

 283. 



Aldrovandus places the bats among birds, iii. 232. 



Alexander's soldiers agitated by curiosity and apprehension at 

 the tides in the river Indus, i. 221. 



Alligator, or the Cayman, a kind of crocodile, v. 292. 



Alps, dreadful chasms found in them, i. 54*. Pope's descrip- 

 tion of a traveller straining up the Alps, 124. The highest 

 point of them not above sixteen hundred toises above the 

 surface of the sea, 131. 



Amazon, the greatest river in the world, has its source among 

 the Andes, i. 123. Its course from its origin in the lake of 

 Lauricocah to its discharge into the Western Ocean, is 

 more than twelve hundred leagues ; its discharge is through 

 a channel of a hundred and fifty miles broad, after receiv- 

 ing above sixty considerable rivers, 186. 



Ambergrise long considered as a substance found floating on 

 the sea, but since discovered to belong to the cachalot, v. 

 53. See Cachalot. 



Ambrose, St, his credulity concerning the halcyon, iv. 4-34. 



America exceeds in the size of its reptiles, but is inferior in 

 its quadrupeds, ii. 169. The black rats originally from 

 Europe, have propagated greatly in America, and are now 

 the most noxious animals there, iii. 182. The American 

 mock -bird assumes the tone of every animal in the wood, 

 from the wolf to the raven ; its description and habits, iv. 

 263. Catesby asserts the wolf was the only dog used by 



