622 



INDEX. 



La Bruy^re, 5, note ; the peasantry of, 

 described by Arthur Young, 6, note; 

 forests of, 304 ; imports timber largely, 

 306, note; sale of forest lands by, 308, 

 note ; recent forest legislation of, highly 

 useful, 309; royal forests and forest 

 laws, 339; inundations of, 474; reme- 

 dies against inundations, 475, 



Frescobaldi, on sands of desert, 531, 

 note. 



Friesland, sand-dunes of, 564. 



Frost, action of, on soil, 403, note. 



Fucinus, draining of Lake of, by Prince 

 Torlonia, 415, et seq. 



Fur animals, destruction of, 103, note. 



GAME Laws, effects of, 94, note; 115, 

 303, 342. 

 Ganges, effect of clearing valley of, 388, 



note ; canal, 437, note. 

 Gascony, coast-sands of, 553 ; dunes, 



553 ; dunes, extent and advance of, 



553 ; lands of, 580 ; their reclamation, 



581 ; their area, 581, note. 

 Geographers, new school of, 7. 

 Geography, modern, embraces organic 



life, 55. 

 German Ocean, sands of, 528, note. 

 Glacier lakes in Switzerland, 484. 

 Goat, Angora, habits of, 87, note ; intro- 

 duction of, into America, 87, note. 

 Goldau, Switaerland, mountain-slide at, 



279. 

 Gold-fish, the introduction of, from 



China, 95. 

 Goode, Prof. G. B., on the Oyster, 98, 



note; on Fisheries, 101, note ; 105, note. 

 Grape disease, its economic effects in 



France, Italy, Sicily, 77, note. 

 Grasshopper, increase of, on account of 



wholesale slaughter of birds, 137, note. 

 Grass-laud, meteorological action of, 36. 

 Grave-digger beetle, habits of, 130. 

 Greece, subterranean waters of, 455, note ; 



proposed canal through Isthmus of 



Corinth, 588 ; proposed canal across 



Mt. Athos, 589. 

 Gulls, sea, habits of, 113, note. 

 Gunpowder, chiefly used for industrial 



purposes, 394, note. 



TTAARLEM, Lake of, drained, 405; 



-*--*- climatic effect of drainage, 439. 



Hail, damage done by, 153, note ; whether 

 prevented by woods, 153, note. 



Harbors, artificial, rarity of, 390, note. 



Hauran, the productions of its soil, 59, 

 note. 



Hearing, faculty of, 12, note. 



Heat, solar, utilization of, 45, note; ac- 

 tion of, on rock, 531, Tiote. 



Heilbronn, springs of, 232. 



Herring, fishery of, 104, nate. 



Hessian fly, introduction of, into the 

 United States, 133. 



Himalayas, the, snow limit of, 195. 



Hoang-ho, delta of, 277; change of 



mouth of, 487, note. 

 Honey, spurious, 134, note. 

 Human action, incidental effects of, 612 ; 



cosmical results of, 616, note. 

 Humphreys & Abbot's Report on tho 



Mississippi, value of, 494, note. 

 Hydrograpliy of North America, 600. 

 Hygroscopicity of earth, increased by 



heat, 25, note. 



TBEX, the Alpine, 9. 



J- Ice, expansion of, 443, note. 



Ijssel River, 410. 



Improvement, works of, remarkable for 

 volume and difficulty, 391, note. 



Indestructibility of man's work, 49, note. 



India, human victims to beasts and 

 snakes in, 135, note ; devastation ol 

 forests in, 303, note. 



Indian corn, acclimation of, 17, note. 



Indians on Amazon, tiieir skUl in the use 

 of the bow, 13, note. 



Individual labor, 393, note. 



Infiltration of water from lakes, 430, 

 note ; of fresh water in Gulf of Akaba, 

 463, note; of Nile water, 460, note. 



Infusoriae, importance of, 139-145. 



Inoculation, suggestions concerning, 145, 

 note. 



Insects, destruction of property by, 114, 

 note. 



Insects and worms, utility of, 126 ; use- 

 ful in fertilization of plants, 127 et seq. ; 

 influence of, on vegetation, 130-136 ; 

 carnivorous, useful to man, 130; how 

 far injurious to forest trees, 131; intro- 

 duction of, 133-136 • ravages of, 133 ; 

 tenacity of life in, 135 et seq. ; destruc- 

 tion of, by fish, 136 ; abundance of, in 

 Northern Europe, 137, note; destruc- 

 tion of, by birds, 113 ; quadrupeds, 

 139 ; confine themselves to dead trees, 

 138, 370, note; do not multiply in the 

 forest, 334. 



Instinct, animal, modification of, 39, note. 



Insurance against fall of rocks, 384, note; 

 forest fires, 374 ; hall. 



Inundations, recent measures against, 

 493 ; aggravated by deposits in bed of 

 streams, 333 ; occasioned by thaws, 334 ; 

 in France, histoiy of, 338, note; eco- 

 nomical evils of, 239 ; action of, on 

 river bed, 354 ; iu Netherlands, 393 ; 

 and torrents, 474 et seq. ; of 18"»6 in 

 France, 474 ; measures against, in 

 France, 475 ; where thej' originate, 476 ; 

 remedies against, 475 ; from ice-bar- 

 riers, 484 ; of banks of River Po, 493, 

 note; of the Mississippi, 493, note; 

 Rozet's remedy against, 495. 



Irrigation, antiquity of, 433 ; among 

 Mexicans and Peruvians, 434, note ; it8 

 necessity in hot climates, 434 ; in North- 

 ern Italy, 441, note; in Turkish Em- 

 pire, 435 ; in India, 437 ; in Egypt, 438 ; 

 in the United States, 442, note; in 



