INDEX. 



751 



Goose-Grass, 526. 



Gorges, remarkable, in Black Forest, G05 ; of 

 erosion in Mount Taurus, 609 ; engraving of, GOT. 



Goshawk, nest of, 261 ; engraving of, 259. 



Graminaceae, 490. 



Granite-Beds, 542. 



Grasshoppers, ravage portions of the United States, 

 328. 



Grave-Diggers, 182. 



Grebe, Little, its floating nest, 274 ; method of 

 escaping from enemy, 274 ; nests of, engraving 

 of, 275. 



Grossbeak, Sociable, the immense cluster of nests 

 built by, 252 ; engraving of , 249 ; appearance of, 

 seen from a distance, 252. 



Grottoes, 651 ; Antiparos, 651 ; remarkable features 

 of, 652 ; Mammoth, 654. 



Gryllolalpa vulgaris, mole - cricket, subterranean 

 habits and devastation it produces, 185, 186; 

 engraving of, 184. 



Guettard, experiment to decide amount of vege- 

 table transpiration, 393 ; engraving of experi- 

 ment, 394. 



Gutta-Percha, yielded by plants of the Sapotaceae, 

 417. 



Gymnotus electricus, 667 ; account of, 667, note. 



Gypaetus barbatus, bearded vulture, attacks hunt- 

 ers, 236. 



II. 



Halcyon, wave-rocked nest, ancient fables respect- 

 ing, 273; Pliny's opinion of, Plutarch's belief 

 concerning, 274 ; our kingfisher, 274. 



Hale's experiment on force of circulation in plants, 

 377 ; engraving of, 378 ; experiment on transpira- 

 tion of plants, 395 ; engraving of, 395. 



Ham, Town of, shower of toads at, 321. 



Hans Sloane on flight of sea-mews, 309. 



Haricot, 531, note. 



Hartzoeker, reputed the discoverer of the micro- 

 scope, 7 ; attacks and insults Leuwenhoeck, 8. 



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



Hedgehog, protects agriculture, 223 ; not a vegeta- 

 ble but a flesh eater, 223 ; used in place of cats 

 in Astrachan, 223. 



Hedge-Mustard, sudden appearance of, after the 

 fire of London, 485. 



Helichrysum fetidum, 530. 



Hellenes, their views respecting fire and water, 

 616. 



Hell Valley, 605. 



Hepialus virescens, engraving of, 681. 



Hercynian Forest, 606. 



Hermit-Crab, 198. 



Herring, its habits and migrations, 322 ; large 

 numbers taken, 324, note. 



Hibiscus mutabilis, mutability of its color, 453. 



Hippopotami, attached to native soil, 300. 



Hirundo esculenta, its habits, 282 ; engraving of 

 nest of, 282 ; mode of gathering the nests, used 

 as food, 285 ; their value in the market, 286, note; 

 H. ariel, engraving of, 311 : attached to its old 

 nest, 314. 



Honey-Ant (Myrmecocyctus Mexicanus), collected 

 and eaten, 172 ; engraving of, 173. 



Huber's observations on ants, 169, seq.; corrobo- 

 rated by Smith and Darwin, 171 ; description of 

 battle of, 173. 



Human Race, antiquity of, 576 ; remains in drift- 

 gravel, 578, note. 



Humboldt on sense of smell in -vultures, 309. 



Humming-Bird, 234 ; minute size of, 234 ; nest of 

 saw-beaked, 237. 



Hut, negro, lighted by beetles, engraving of, 122. 



Hydraulic engineers, 201. 



Hydrophilus piceus, water-beetle, 202. 



Hygroscopic action, 372. 



Hylesinus, Pine, and nuptial chamber of, engraving 

 of, 216. 



Icebergs, a means of disseminating plants, 525 ; in 

 Polar regions, 646 ; dangers of, 646 ; breaking up 

 of, 647, note ; chain of, engraving of, 649. 



Iceland, colonization of, due to birds, 528. 



Ice-Plant, engraving of, 373. 



Ichneumons, rapacity of, 150 ; larvae of, devour 

 caterpillars, engraving of, 151 ; their mode of 

 encasing their victim discovered by Leuwen- 

 hoeck and Vallisneri, 152. 



Ichthyosaurus, 555 ; coprolites of, plentiful, 556 ; 

 engraving of head of, 555. 



Idlers and assassins, 255. 



Iguanodons, 562, and note. 



Imago, or perfect insect, 131 ; its birth, 131. 



Immensity, everywhere, 3. 



Infusoria, an inappropriate term, 10 ; better em- 

 ploy Microzoa or Protozoa, 10 ; their complicated 

 organization demonstrated by Ehrenberg, 11 ; 

 figure of, 11 ; some have eyes, 14 ; their incessant 

 activity, 14; Owen's opinion respecting, 15; 

 found at bottom of Antarctic Ocean, figure of, 

 15 ; swarm in transparent waters of ocean, and 

 in muddy waters of rivers and ponds, 18 ; theory 

 of their mode of increase, 21, note; meteoric, 

 23 ; antediluvian, 26 ; their prodigious abundance 

 during certain geological periods, 26 ; stratified 

 rocks formed of, 26 ; constitute mountains, 26 ; 

 form tripolis, 26 , found in flint, 29 ; silicious 

 skeletons of, cause the red color in cornelians, 

 29. 



Insects, 85 ; intelligence of, perfection of tools of, 

 85 ; may be grouped into castes of workmen, 85; 

 extremes of size and strength, 85 ; leaf (Mormo- 

 lyce phyllodes), engraving of, 87 ; organization, 

 marvels of, 91 ; information respecting, due to 

 anatomy and the microscope, and to men who 

 have devoted their lives to the object, 91 ; spe- 

 cially to Lyonet and Goedart, 91 ; shows that na- 

 ture knows how to unite power to an exquisite 

 fineness of mechanism, 93 ; great strength of, 

 103 ; flea, an illustration of, 104 ; touch supplies 

 want of language, 107 ; ants talk by touch, 107 ; 

 remarkable power of sight, 107, 108 ; exquisite 

 sense of smell, 109; resident in the antennae, 

 109 ; wonderful organization of olfactory appa- 



