[ N D E X. S2S 



H 



Habitations of animals. When not reftrained, animals uniformly build in the fame ftile, 

 310. Habitations and manners of the Alpine marmot, 311,312. Of the beaver, 

 313,318. Of the mole, 318. Of birds, 319. Defcription of the eagle's neft, ibid. 

 Of the magpie's neft, 320. Of the titmoufe's neft, ibid. Of penfile nefts, 321. Of 

 the neft of the taylor-bird, ibid. Nefts of fmall birds, 324. Of water-fowls, 32J. 

 Neft of the mafon-bee, 326. Of the wood-piercing bee, 329. Of another folitary 

 bee, 333. Of the honey-bee, 336, &c. Of the wafps, 349. Of the termites or 

 wood-ants, 359. Of the common caterpillar, 426. Of the proceflionary caterpillar, 



427. 



Hares. Their artifices in efcaping the dogs, 403. 



Health promoted by moderate laughing, 109. 



Hearing. Fifties endowed with that lenfe, 80. The Inftruments and caufes of hearing, 

 167. Why infants hear bluntly, 169. The pleafures derived from hearing, 171. 

 The fource of artificial language, ibid. 



Heat. See animal heat. 



Hemipterous infefts. Of their form and manners, 90. 



Herbivorous quadrupeds. See animals. Their form adapted to their difpofitions, 59. 



Hermaphrodites. Some infefls are hermaphrodites, 239. Many inftances of herma- 

 phrodites among horfes, black cattle, and flieep, 242, 243, 244. 



Herrings perform extenfive migrations, 497. 



Hippobofca. See horfe-fly. 



Hogs affociate and defend each other, 433. 



Honey-bee. See bees. 



Horfe-fly. Account of it, 97. 



Horfes. When attacked by any rapacious animal, rank up in lines to defend themfelves, 

 400. One afts as a centinel, ibid. Affociate with oxen, 433. The gentlenefs and 

 docility of their difpofitions, 453. Notices of wild horfes, 454. Naturally affociate 

 with man, 455. Their emulation and warlike temper, 455, 456. Their feats in 

 exhibitions, 456. 



Hoftilities of animals, 371, 374- Man the moft rapacious and the moft univerfal de- 

 ftroyer, 37J. Of rapacious quadrupeds, 378. Of rapacious birds, 380. Every fifli 

 rapacious, 382. Of rapacious infefts, 383. Man not the only animal that makes 

 war with his own fpecies, 386. Neuter bees maffacre the males, 387. Bees fre- 

 quently fight with each other, 388. In October, wafps maffacre all their young, 

 389- This feeming cruelty is perhaps an aiSl of mercy, ibid. Hoftilities of animals 

 give rife to mutual improvement, 39 1 . There is a wonderful balance in the fyftem 

 of animal deftruiljon, 393. 



Hottentots, 



