202 



INDEX 



as friends of man, H. B., 20-22. 



definition, H. B., 11, Fig. 7. 



occurrence, H. B., 14—20. 

 Barbs of feather, A. B., 68, Fig. 50. 

 Bathing, H. B., 141. 

 Bedbug, A. B., 60, Fig. 45. 

 Beekeeping, history of, A. B., 33. 

 Bees, A. B., 31-43. 

 Beverages, H. B., 65-75. 

 Bicuspid teeth, H. B., 86. 

 Bile, H. B., 101. 

 BUe duct, H. B., 101. 

 BUI of birds, A. B., 64. 

 Biologists, lives of, H. B., 168. 

 Bird houses, A. B., 99, Fig. 77. 

 Birds, A. B., 62-100. 

 Bivalve A. B., 181. 

 Black-leaf-40, A. B., 61. 

 Blood, 



of fish, A. B., 131. 



of frog, A. B., 110. 



of man, H. B., 7, 107. 

 Blood corpuscles, 



of frog, A. B., 111. 



of man, H. B., 7, Fig. 5. 

 Blood flow, stopping of, H. B., 120. 

 Blood plasma, 



composition of, H. B., 107. 



of frog, A. B., 111. 



of man, H. B., 7. 

 BoboUnk, A. B., 79, 90, Fig. 67. 

 Bobwhite, A. B., Fig. 62. 

 Boiling meats, H. B., 54. 



vegetables, H. B., 55. 

 Bottle poison, A. B., 1, Fig. 2. 

 Boxes for insects, A. B., 3, Figs. 4, 5. 

 Boys, 



as destroyers of birds, A. B., 92. 



as protectors of birds, A. B., 98. 

 Brain, H. B., 155. 

 Branches of animal kingdom, A. B., 



190. 

 Bread making, H. B., 55. 

 Breastbone, H. B., 146, Fig. 44. 

 Breathing, definition of, H. B., 124. 

 Breathing capacity of lungs, H. B., 



131. 

 Breathing movements, 



of crayfish, A. B., 154. 



of fish, A. B., 134. 



of frog, A. B., 102. 



of grasshopper, A. B., 26. 



of man, H. B., 130-131. 

 Breathing pores, A. B., 26, Fig. 17. 

 Breathing tubes, A. B., 26, Fig, 17. 

 Broiling meats, H. B., 54. 

 Bronchial tubes, H. B., 12^. 

 Bronchitis, H. B., 135. 

 Brood chamber, A. B., 34, Fig. 23. 

 Buds of hydra, A. B., 177. 

 Bullhead, A. B., Fig. 101. 

 Bumblebee, A. B., 31-33. 

 Burns, treatment of, H. B., 142. 

 Business arguments for total absti- 

 nence, H. B., 74. 

 Butterflies, A. B., 1-22. 



Cabbage butterfly, A. B., 14, Fig. 10. 

 Canine teeth, A. B., 188; H. B., 86. 

 Capillaries, 



of fish, A. B., 131. 



of frog, A. B., 103, 113, Figs. 82, 83. 



of man, H. B. 109, 115-116, Fig. 36. 

 Carbohydrates, in human body, H. B., 

 44. 



uses of in, H. B., 51. 

 Carbon dioxid, 



excretion of, A. B., 114, 136; H. B., 

 136. 



production of, in man, H. B., 122. 

 Carpet sweeper, 



use of, H. B., 26, Fig. 11. 

 Cartilage, H. B., 144. 

 Catarrh, H. B., 134. 

 Caterpillar, A. B., 11, Fig. 6. 

 Cats, as destroyers of birds, A. B., 92. 

 Cause, ' 



of diphtheria, H. B., 34. 



of pneumonia, H. B., 34. 



of tuberculosis, H. B., 30. 

 Cell body, H. B., 6. 

 Cells, H. B., 5, Figs. 3, 4. 



definition, H. B., 6. 



division of, H. B., 6, Fig. 4. 



of blood, H. B., 7. 



of other tissue, H. B., 9. 

 Cellulose. H. B., 5. 

 Cement of tooth, H. B., 88. 



