INDEX 



Agassiz, Louis, 168, 169. 



Air, light and heavy. 72, 73. 



Albatross, 38. 



Animal life, abundance, 11, 12. 



Antlers, 201. 



Ants, 11. 



Army trucks. 110. 111. 



Arum, 196. 



Automobile trip, 109-26. 



Bacon, Francis, 186. 



Barton. W.Va., 119. 



Bee, honey, spirit of the hive, 

 152, 158-62; intelligence, 

 156, 157; communication, 

 159, 160; their world, 161; 

 sting, 165. 



Bee, leaf-cutter, 14, 15. 



Beech, autumn color, 3. 



Birds, living with, 31; flight, 

 32-38; and cats, 56; nesting 

 near houses, 54-59; home 

 sense, 59; nests of most 

 species built by the females, 

 64, 65; and dead trees, 84, 

 85; song, 86; at Pine Knot, 

 Va., 102-05; of southern 

 California, 129-32; commu- 

 nity of mind in flocks, 153, 

 154. 



Birds' nests, finding, 79-81. 



Bluebird, endearing qualities, 

 43; nesting, 43, 44, 54; expe- 

 rience with a pair, 44-48. 



Bobolink, song flight, 38, 85. 



Bolar Springs, 117. 



Brain, as organ of the mind, 22, 

 23. 



Buffon, Georges Louis Le Clerc, 

 157. 



Bumble-bee, carpenter. 36. 



Bunting, indigo, nesting, 90, 



91. 



Bunting, painted, 114. 

 Butterflies, flight, 34; flocking. 



155. 



Butterfly, monarch, 34, 35, 155. 

 Buzzard, turkey, 32-34. 



Cacti, 143-48. 



California, southern, observa- 

 tions in, 127-51; coast, 127; 

 mountains, 127, 128; climate 

 and soil, 128; bird-song, 128, 

 129; birds, 129-32; change of 

 climate in, 210-12. 



Cambium layer, 5, 6. 



Carpenter, W. B., quoted, 194. 



Catbird, 30; stealthiness, 60, 67, 

 68; experience with a pair, 

 60-66; fondness for butter, 

 66; theatrical, 68; notes, 87. 



Caterpillars, 91-94. 



Causes, 165-67. 



Cedar-bird, 65. 



Chance, in animal life, 208, 209. 



Cheat River, W.Va., 116. 



Chipmunks, two in a den, 11; 

 storing currants, 17; carry- 

 ing provender, 96, 97. 



Chippie. See Sparrow, chip- 

 ping. 



Chlorophyll, 190. 191. 



Chrysalis, 12. 



Condor, 33, 34. 



Connellsville, Pa., 113. 



Cormorant, 132. 



Cosmos, the, order and har- 

 mony of, 191-93. 



Cow, 205. 



Crow, flight, 37; needs no 

 great wing-power, 180. 



219 



