INDEX-GLOSSARY TO PART II, 



A 



ABDOMEN, Astacus, 83, 84 ; Lepus, 269. 



Abduction (ab, from ; duco, ductum, draw, lead) of appendages Movement 



away from the. middle line, 91. 

 Abiogenesis (-, not ; #/os, life, yt'i'eo-is, birth) Derivation of living from 



non-living matter, 7. 

 Aboral (ab, away from ; os, mouth) Situated at the end further away 



from the mouth, 19. 

 Absorption, 5, 194. 

 Accretion (ad, to ; cresco, cretum, grow) Growth by addition of layers to 



the outside, 7. 

 Acetabulum (acetabulum, properly a vessel for vinegar ; the socket of the 



hip bone) The socket into which the head of the femur fits, 186, 239, 



281, 327. 

 Achromatin (a-, not ; xpw/ma, colouring matter) The part of the nucleus 



which does not readily take up stain, 8, 73. 

 Acinus (ckii/os, acinus, a berry, a grape) of a gland One of the ultimate 



(spherical or tubular) subdivisions, lined by secreting cells, 33, 288. 

 Acipenser, 153, 349. 

 Acrania, 135. 

 Acromion (a K pwuiov, used with the modern meaning) in Mammalia A 



. spine-like process of the scapula, 280. 

 Action, 102. 

 Adduction (ad, to; duco, ductum, draw) of appendages Movement towards 



the middle line, 91. 

 Adrenal, 205, 250. 



Aetiology (aiTiov, a cause ; Xoyos) = Phylogeny, q. r. 

 Afferent (ad, to ; fero, I carry) Of nerve-fibres in conducting impulses to 



a ganglion cell or to the central nervous system, 102, 146, 217 ; of 



vessels carrying impure blood to gills, 164. 

 Africa, 349. 

 After-shaft, in the Fowl A minute vane attached to the superior umbilicus 



of an ordinary feather, 231. 



