INDEX. 
Agrtas, i. 297. 
Air-roots, i. 50. 
Aiyuss^ turtle,- ii. 281. 
Alligators, i. 227 ; ii. 185, 265, 278, 
281, 286, 289, 297, 391. 
Amazons, province, population of, i. 
339. 
— valley, contraction of, i. 
232. 
— Lower, rising and sinking 
of; i. 274. 
— Upper, rising and sinking 
of, ii. 220. 
Amphisbsena snakes, i. 101. 
Ampullaria, i. 124; ii. 30. 
Anac^ parrot, i. 227. 
Anaconda, ii. 113. 
Animals, large, scarcity of, i. 70. 
Ant-eaters, i. 177. 
Arara Indians, i. 315. 
Arboreal nature of Fauna, i. 49, 72. 
Arrow-grass, i. 277. 
Arrows for shootiug turtle, ii. 261. 
Arroyas, cataracts of, i. 136. 
Arube sauce, i. 318. 
Arums, forest of, i. 200. 
Assacu, poisonous tree, ii. 288. 
Assai palm, i. 8, 123, 
Ateles marginatus, ii. 118. 
Atmosphere, transparency of, i. 127. 
Attalea excelsa, ii. 167. 
Bacaba palms, i. 224 ; ii. 39, 169. 
Barbets, i. 278. 
Barrigudo monkeys, ii. 319. 
Bats, i. 175. 
Bees, i. 70 ; ii. 45. 
Bembex, ii. 32. 
Bird-killing spider, i. 160. 
Birds, insectivorous, flocks of, ii. 
334. 
— singing, of forest 
Blow-pipe, ii. 236. 
Boa-constrictor, i. 99; ii. 120. 
Box-wood, ii. 79. 
Brachyurus calvus and rubicundus, 
ii. 306. 
Brazil-nut trees, i. 67, 135. 
Breio branco, ii. 23. 
Burmeister, on virgin forest, i. 53. 
Butterflies, great diversity of, near 
Par^ i. 102. 
— importance of, in Biologi- 
cal science, ii. 345. 
— of Ega, ii. 227. 
Buttress- trees, i. 68. 
Byrsomina, ii. 23. 
Cacao planters, i. 158, 269. 
Caiar^ra monkeys, ii. 100. 
Caisbdna Indians, ii. 373. 
Caju trees, ii. 22. 
Callidryas,i. 249. 
Callithea, i. 249, 297 ; ii. 228. 
Callitbrix monkeys, i. 280 ; ii. 98. 
Canary (birds), i. 282. 
Cannibal Indians, ii. 406. 
