INDEX 



I, V, X, etc. = Introduction : P = Plant Biology : A = Animal Biology : 

 H = Human Biology. 



Aboral surface, A 35. 



Aborted seeds, P 166. 



Absorption, H 106. 



Abutilon, p 156. 



Accessory fruit, p 164, 169. 



Accommodation in eye, H 143, 153. 



Acephala, A 107. 



Acid, ix. 



Adaptation to environment, p 6, A 148, 

 185, 201, 205, 207, H 19, 108, 109, 

 no. 



Adenoid growths, H 86. 



Adipose tissue, H 12. 



Adulteration of food, H 93. 



Adventitious roots, P 36; buds, P 114. 



Aerial roots, p 34. 



Aggregate fruit, p 168. 



Air cells, H 75. 



Air plants, p 35. 



Akenes, P 165. 



Albinism, H 16, 18. 



Albumen, H 92. 



Albumin, H 92. 



Alcohol and circulation, H 67 ; and 

 fermentation, H 158; and food, 

 H 113; and muscles, H 50; and 

 nerves, H 135; and skin, H 20. 



Algae, P 179, 183, 195. 



Alkaline, ix. 



Alternation of generation, p 179, A 30, 



3i- 



Ambulacra!, A 36. 



Ameba, A 10. 



Americans, H i. 



Anadon, A 98. 



Anatomy, H 9. 



Anemophilous, p 149. 



Animal food, H 95, no. 



Annual plant, p 17. 



Antelope, A 215. 



Antennae, A 68, 87. 



Anther, P 135, 144, 180. 



Antheridium, P 178, 186, 198, 200, 



202, 203. 

 Ant-eater, giant, A 199; spiny, A 196. 



Ant-lion, A 91. 



Ape, A 220. 



Apical dehiscence, P 166. 



Appendicitis, H 106. 



Appendix, vermiform, *H 106. 



Appetite, H 94, no. 



Aptera, A 82. 



Apteryx, A 174. 



Aquarium, A 17. 



Archegonium, p 178, 198, 200, 302, 



203. 



Argonaut, paper, A 107. 

 Arm, H 33. 

 Armadillo, A 200. 

 Arrowhead, H 2. 

 Arteries, H 5 1, 53, 54,61. 

 Arthropoda, A 9, 125. 

 Arum family, p 140. 

 Ash, p 92. 



Asiatic cholera, H 160. 

 Assimilation, p 97, H 90. 

 Association fibers, H 123, 126. 

 Asthma, H 86. 

 Astigmatism, H 144. 

 Athletics, H 46, 47. 

 Atwater's experiments, H 113. 

 Auricle, H 53. 

 Automatic action, H 123. 

 Axil, p 112. 

 Axis, plant, p 15. 

 Axon, H 119. 



Bacillus, H 158, 159. 



Bacteria, p 39, 109, 182, H 158, 159, 



160, 161. 

 Bandage, H 62. 

 Barberry, p 157, 193. 

 Bark, p 54, 66, 67. 

 Bark-bound trees, p 54. 

 Bast, p 61, 66. 

 Bat, A 202. 

 Baths, H 23, 24. 

 Batrachia, A 126. 



Bean, p 20, 28, 39, 194, H 95, 96, 112. 

 Beaver, A 204. 



