INDEX 



Abandoned farms, 52. 



Acacia tree, gum arabic made from, gs. 



Adobe soil, 58. 



^olian soil, 66. 



Africa, need for protection of animals in, 



180. 

 Agassiz Associations, work of, 207. 

 Air, importance of pure, 10. 

 Alaska, protection of fish in waters about, 



170. 

 Alkali soil, 59. 

 Alluvial soil, 64. 

 Animals, the first domestic, s ; careless 



destruction of, 12, 49; court of birds 



and, 188-194; predatory, 203. 

 Antelope, disappearance of, 179; in 



Yellowstone Park, 205. 

 Appalachian Forest, the, 133-134. 

 Arabs, life of the, 25. 

 Arbor Day, celebration of, 210. 

 Argentine ant, a plague, 153. 

 Australia, rabbits as pests in, 152. 

 Aztec Indians, 20. 



Bacteria in soil, 59-60. 



Balance of nature, 151; effects of up- 

 setting, 151-154. 



Barren Lands,' loi. 



Bears, in early times, 21 ; _in Yellowstone 

 Park, 205. 



Beaver, trapping of, 179 ; protection of, 

 205. 



Big trees of California, 49, 99. 



Bird Day, observance of, 210. 



Bird of paradise, nearly extinct, 187. 



Bird refuges, 187, 208-209 ; patrols for, 

 209-210. 



Birds, 21; extinct species of, 22; de- 

 struction of, 49, 176-182 : hunting of, 

 for millinery purposes, 183-187; 

 court of the, 188-194; onr good 

 friends and pleasant companions, 

 195-202; predatory, 203; national 

 protection of, 205-206. 



Black bears, case of the, 192-193. 



Blue jays, 189. 



Bobolink, friends and enemies of, 189. 



Bone, implements of, 3. 



Boy Scouts, love of, for wild creatures, 

 207. 



Broad-leaved and narrow-leaved trees, 98. 



Bronze, making of, 5. 



Browntail moth, 152. 



Buffaloes, 21; slaughter of, 177; in 

 Yellowstone Park, 205. 



California, forests of, 49, 98; "big 

 trees" of, 99. 



CaUfornia condor, disappearance of, 180. 



Camp Fire Girls, love of, for wild crea- 

 tures, 207. 



Camping parties, forest fires started by, 

 122. 



Canada, beaver in, 179. 



Canada balsam, 93. 



Canals, use of water for, 87. 



Cats, killing of birds by, 210. 



Chesapeake Bay, fisheries of, 167. 



Chestnut-tree blight, 107. 



China, results of destruction of vegeta- 

 tion in, 79-80. 



Christmas decorations, 149. 



Cigarettes, forest fires caused by, 122. 



Citrus canker, 109. 



"City on the Plain, The," 14. 



Clay, a part of soil, 58. 



Clay loam, 58. 



Closed season for hunting, 205. 



Coal, care necessary in use of, 12; un- 

 equal distribution of, 27 ; deposits and 

 mining of, 155-156; waste connected 

 with, 156-157. 



Cod fisheries, 170. 



Codling moth, 153. 



Colorado River, mud carried by, 73 ; use 

 of water of, for irrigation, 87. 



Cone-bearing trees, 98 ; enemies of, no. 



Conservation, meaning of, 8. 



Conservation commissions, 138. 



Coon, arguments for and against the, 193. 



Cotton-boll weevil, 153. 



Cougar, a predatory beast, 203. 



Coyotes, killing of , 152.; defense of, 193. 



Crater Lake National Park, 140. 



Deer, killed by cougars, 203. 



Deltas of rivers, 43, 55 ; alluvial soil in, 



64. 

 Desert, results of lack of vegetation in 



the, 70-71. 

 Digger pines, 99. 

 Ducks, complaints of oyster farmers 



against, disproved, 194. 



Egrets, killing of, 185, 187. 



Electricity, harnessing of, 8; use of 



water for making, 88. 

 Elephant, urgent need of protection of, 



181. 

 Elk, 21; hunting of, 179; feeding 



grounds of, 204. 



ZI3 



