46 



INDEX. 



Arctic regions, solitudes of, 645 ; researches in, 

 G4G ; formed of a congeries of islands, 040. 



Ariel swallow, engraving of, 311. 



Aristolochia, large flowers of, 448 ; fecundated by 

 means of insects, 400 ; A. Clematitis, engraving 

 of, 405 ; experiment with, 400. 



Artemisia vulgaris, superstition respecting, 742. 



Arlocarpus incisa, bread-fruit tree, engraving of 

 fruit of, 345. 



Arum, Edible, manner of transpiration, 397 ; en- 

 graving of, 307. 



Arum, experiment on, by Ruysch, 390. 



Arundo indica, germination of, engraving of, 479. 



Asclepiadace.T-, fertilization due to insects, 407. 



Asclepias procera, power of sustaining drought, 

 008. 



Ascophori, 494. 



Aspergilli, 494. 



Astronomers, Ancient, possessed no instruments, 

 094. 



Atmosphere, Dumas on, 390, and note; Liebig on, 

 391 ; pressure of, 712 ; loaded with flour of wheat, 

 080 ; with Infusoria, debris of insects, filaments 

 of cotton, silk, etc., GS7 ; germs, where are they ? 

 085 ; substances found in the hollow bones of 

 birds, 0S7. 



Atropa Mandragora, engraving of, 434. 



Aurochs vanished from France, 290. 



Aurora, borealis or australis, 732 ; engraving of, 

 729. 



Auvergne, ancient craters in, 023. 



Avalanches, how formed, 042 ; season in which 

 they occur, 042 ; ravages occasioned by, 042. 



B. 



Balm, 411. 



Baltic, beach of, rising, 595. 



Baltimore Oriole, a skilful weaver, 290 ; nest of, 

 engraving of, 290. 



Bamboo, rapidity of growth, 407. 



Banyan-Tree, its aerial roots ultimately reach the 

 soil and take root there, 370 ; called the pagoda 

 fig-tree, 371 ; sometimes so large as to seem a 

 forest, 371 ; engraving of, 309. 



Baobab, great size, 490 ; ungraceful, 490 ; use made 

 of stem by negroes, 499 ; engraving of, 513. 



Bark, the, its layers, 349 ; inner, 351 ; rapid growth 

 of, 405. 



Barn-Owl, nest of, engraving of, 258. 



Bartholin on the odor of rosemary, 411. 



Basalt, formation of, 035 ; cliffs of, in Staffa, en- 

 graving of, 035. 



Bats, do not migrate, 301 ; Nycteris of tipper 

 Egypt, 301 ; engraving of, 302. 



Bee, Working, remarkable structure of its feet, 

 104 ; brush and pincers of, engraving of, 105 ; 

 under side of, engraving of, 105 ; intelligence dis- 

 played in ejecting enemies, 144 ; some invaders 

 it envelops in resinous matter, 145 ; displays 

 foresight, 140 ; remarkable instinct displayed in 

 making a queen, 147 ; carpenter, 195 ; its habits, 

 190 ; its little chambers for its young, engraving 

 of, 190; English (Xylocopa violacea), 197, note; 

 mason, 205. 



Beetle, Gigantic, Goliath, 85 ; luminous, of the 

 West Indies, 123 ; use made of, 123 ; engraving 

 of, 121 ; sacred Scarabreus, 127 ; dung Scarabseus, 

 mode of collecting dung in which to hatch its 

 young, 152 ; engraving of, 153. 



Berlin built on beds of animalcules, 20. 



Bernard Palissy, founder of positive geology, 587. 



Bilin, tripoli of, 27 ; Schleideu's calculation of the 

 number of animalcules in a cubic inch of, 27, 28 ; 

 extent of its schists, 28. 



Birds, architecture of, 220 ; of humming-birds, 220, 

 239 ; of swallows, 230 ; of king-fisher and mag- 

 pie, 230; eagles, goshawks, 239; their abodes, 

 240 ; migration of, 304 ; engraving of condor, 

 307 ; cranes, 305 ; engraving of, 300 ; mechanism 

 of, 305; swallow, 305; wonderful strength of 

 frame, 305; speed of flight, 300; ariel swallow, 

 engraviug of, 311 ; sea-mews, Sir Hans Sloane 

 on flight of, 309 ; vultures, sense of smell, 309 ; 

 quails, migration of, understood, 309 ; Charles 

 Buxton on acclimatization of birds, 313, note f 

 passenger pigeon, 314 ; speed of flight, 315 ; en- 

 graving of, 31C ; penguins, 315. 



Bird-Tree, engraving of 741. 



Blood, shower of, explained, 130 ; due to certain 

 diurnal Lepidoptera, 137. 



Bombardier (Brack in us), its ingenious means of 

 protecting itself from enemies, 142 ; B. crepitans 

 defending itself, engraving of, 143 ; description 

 o, 143, note. 



Bombax Ceiba, soft wood of, 518. 



Bombyx of the mulberry-tree, 132, note ; B. dispar, 

 pine silk-worm, mode of forming its nest, 148; 

 engraving of, 149 ; pine, ravager of forest, 213 ; 

 called pine-spinne., 213; monk (B. monacha), 

 213 ; pine-eating phalsena, 213 ; engraving of, 

 214. 



Bone caves, 658. 



Bonnet on revivification of animals, 45. 



Boscowitz on length of Convolvulus, 507. 



Bostrichus beetle, its size, 216 ; great wood-gnawer, 

 216 ; curved-tooth, 218. 



Bower-Bird, nuptial arbor of, engraving of, 2G7 ; 

 mode of building and decorating, 266. 



Bread-Fruit, used as bread in Otaheite, 345 ; its 

 cells crammed with fecula, 345 ; its great weight, 

 346 ; engraving of, 345. 



Bremser's hypothesis, 581, note. 



Brindisi, palm-tree of, 408. 



Brocken, spectres of, 602 ; engraving of, 603. 



Brugmans finds that the roots of one plant poison 

 those of another, 427. 



Bryum alpinum, 524, note. 



Buffaloes, migration of, 301 ; Chateaubriand on, 301. 



Buprestidae, their rich garments, 89 ; Bnprestis im- 

 perialism engraving of, 89. 



Burrowing-Owl, its subterranean habits, 2SS ; bur- 

 row of, engraving of, 287 ; its companions under 

 ground, 288. 



Burying - Beetle (Xecrophorus sepultor), inters 

 moles, etc., 183; engraving of, 183; deposits its 

 eggs in dead animals, 1S3 ; interring a small rat, 

 engraving of, 1S4. 



Butcher-Birds, assassins, 261, 



