-INDEX. 299 



summate, the husband at ten years old, and the wife at 

 eight, and frequently have children at that age ; Indians 

 have long been remarkable for cowardice and effeminacy ; 

 they may be considered as a feeble race of sensualists ; 

 their dress, ii. 83. The horses of India are weak and 

 washy, 193. Lions are found to diminish in their numbers 

 in this country, 400. The Indians eagerly pursue the por- 

 cupine, in order to make embroidery of its quills, and to 

 eat its flesh, iii. 214. They eat bats in the East Indies, 

 238. See Elephant. 



India (West), whence originally come the flat heads of the 

 American Indians, ii. 95. 



Indus, river, its course, i. 182. Its water, and that of the 

 Thames, the most light and wholesome in the world, 147. 

 The tide at the mouth of this river the greatest known, 221. 



Infants, just born, may be said to come from one element to 

 another, and why ; open their eyes the instant of their birth ; 

 more capable of sustaining hunger, and more patient of 

 cold, than grown persons, and why ; infants have milk in 

 their own breasts ; their life very precarious till the age of 

 three or four ; instances of it ; the comparative progress of 

 the understanding greater in infants than in children of 

 three or four years old, i. 389. 



Insects, in the internal parts of South America, and Africa, 

 they grow to a prodigious size, and why ; those of the 

 minute kind in the northern climates not half so large as in 

 the temperate zone ; the ocean has its insects ; their feet 

 are placed upon their backs, and almost all without eyes ; 

 in some countries almost darken the air, and a candle can- 

 not be lighted without their instantly flying upon it, and 

 putting out the. flame, i. 351. Many may be supplied by 

 being cut in pieces, 366. Many of the tribes brought forth 

 from the egg, 368. Have no eyelids whatsoever, 415. 

 The Indians are fearful of killing the meanest, ii. 84. Af- 

 ford so great a variety as to elude the search of the most 

 inquisitive pursuer, iv. 3. Those with the greatest number 

 of legs move the slowest, v. 249. The general definition 

 of insects ; the different classes ; general characteristics of 

 insects without wings, v. 386. Of those that have wings, 

 vi. 1. Some continue under the form of an aurelia not ten 

 days, some twenty, some several months, and even for a 

 year, 65. General rule, that the female is larger than the 

 male, 75. Every insect that lives a year after its full 

 growth, is obliged to pass four or five months without 

 nourishment, and will seem to be dead all that time, 140. 

 Description of that which forms and resides in the gall-nut, 

 162. 



Instinct of animals in choosing the proper times of copulation, 



