INDEX. 



i BDOMEN of crayfish, 302 

 J\. ,, ,, rabbit, 3 



Abdominal pores, 173 

 Absorption, 18 

 Acarid, 443 

 Accelerator nerves, 91 

 Acetabulum, 75, 149 

 Achromatin, 43 

 Aciculum, 350 

 Acoela, 446 

 Acrauia, 209 

 Acromion, 73 

 Adaptation, 127, 232 

 Adipose tissue, 58 

 Adradial, 392 

 Adrenals, 33, 154, 190 

 Afferent nerve-fibres, 90 

 Albumen, 13, 228, 247 

 Alcyonana, 435 

 Alecithal, 210 



Alimentary canal, 5, 12, 139, 

 197, 225, 269, 309, 329, 338 

 Ali-sphenoid, 80, 166 

 Allantois, 134, 259, 265 

 Alternation of generations, 363 

 Alveoli, 36, 268 

 Amnion, 134, 258, 26A 

 Amniota, 451 

 Amoeba, 38, 399 

 Amoeboid motion, 84 

 Amphibia, 158, 44'J 

 Amphica-lous, 147 

 Amphioxus, I'.i2 

 Ampullae, 113 

 Amylopsin, 17 

 Anabolism, 10, 45 

 Analogy, 11 

 Anastases, 43 

 Anastomosis v Jugular, 127 

 Anatomy, 11 



173, 



475 



Ancestry of animals, 281, 323 

 Animal and plant, 10, 40, 381 

 Animal pole, 221 

 Annelida, 439 

 Auodonta, 324 

 Anopheles, 423 

 Antennae, 304 

 Autennule, 304 

 Anthers, 291 

 Anthomedusae, 431 

 Authozoa, 435 

 Auura, 158, 232, 450 

 Anus, 12, 192, 226, 328, 336 

 Aorta of mussel, 330 



,, ,, vertebrates, 30, 144, 177, 



200 



Appendages, 303 

 Appendicular skeleton, 66 

 Aptera, 445 

 Arachuida, 442 

 Arch, Aortic, 28, 133 



(See also Arches, Vascular.) 

 , Branchial (see Arches). 

 ,, , Hyoid (see Arches). 

 , Neural, 66 

 Archenteron, 224, 386 

 Arches, Cartilaginous' visceral, 162, 



175, 181, 236, 275 

 ,, , Vascular, 18, 142, 246, 270 

 Archiannelida, 439 

 Archinephric duct, 238, 278 

 Area opaca, pellucida, 249 

 Areolar tissue, 51 

 Arteries and veins, 21, 80 



of crayfish, 312 

 ,, dogfish, 176 

 frog, 144 

 ,, mussel, 330 

 . ,, rabbit, 29 



(See also Arches, Vascular.) 



