INDEX 



Numbers in heavy type refer to. pages with illustrations of the-structure 

 in questions 



Separate references are not given to each mention of, an organ in the 

 section on practical work. 



Abdomen, of cockroach, 2.75. 



of crayfish, 240. . 



of frog, 24. 



of rabbit, 421.. 

 Abdominal or peritoneal cavity, 



421. 

 Abiogenesis, 548. 

 Absorption, 6, 17.. 

 Acalephse, 186, 514; 

 Acarina, 269, 516. 

 Acetabular facet, 350. 

 Acetabulum, 39. 



of frog, 38. 



of pigeon, 408. 



of rabbit, 434. 

 Aciculum, 233. 

 Acipenser, 380. 

 Actinotrichia, 349, 350. 

 Action, reflex and voluntary,. 77. 

 Activity, , direction of.. See.. Pur- 



posiveness. 

 Adaptation, 19, 529. 

 Adult, 9. 

 Aftershaft,,400. 

 Alse cordis, 253. 

 Alimentary, canal. . See. Canal. . 

 Allantois, 383, 3?5> 5 l8 >5i9, 5?8. 



early developed, 51a. 



of bird,, 508, 



of mammal, 508. 

 Allolobophora, prostomium of; 



216, 

 Alternation of, generations, 180. 



in Monocystis,, 127 , 180. 



in Obelia, 180. 



39 



Ammoccetes, ,377. 



Amnion, 383, 38.5, 5*8,, 519, 5°8. 



early developed,, 510. 



of bird, 508, 51a. 



of mammal, 508, 51D, 



present in reptiles,, 385, 510, 



519- 

 Amaba, 100,. Ill, ,112,, 513. 

 proteus, HI. 



depression in, 116. 



encystment.of, ,117. 



excretion in, 116. 



immortality, of, 121. 



irritability, automatism, and 

 conductivity, in, , 1 1.5. 



movements .of; 112.. 



nutrition of, 115. 



reproduction of, 118, 191. 



respiration.of, 1.16. 

 Amcebulse, 127. 

 Amphibia^^ 518. 

 Ampk'ioxu^. See Lance let. 

 Anal cerci, of cack'roachj 276. 

 Anal cirri, of Nereis, 231. 

 Analogous organs, 522. 

 Anatomy, definition^, 2D. 

 Ancylostomum duodenale, 302, 

 Anemones, ,seaT,, 154. 

 Anguillula aceti, 302. 

 Animals, difference between 

 plantSjand; 53J. 

 study of, 1, 120. 

 Anisogamy, 124. 

 Annelida, 238, 515. 

 AnodpRta. .Se^-Swan Mussel. 



