INDEX. 



A. 



Abdomen, 174, 190, 192, 238 

 Abdominal appendages, 195, 198; 



papilla, 188, 236 

 Acetabulum, 71 



Adipose tissue, histology of, 131 

 Adrenal, 24, 52 

 Adventitious buds, 444. 

 Afferent branchial vessels. Cray- 

 fish, 226 ; Mussel, 328 

 Alae, 477 



Albumen gland, 289; duct of, 290 

 Alcoholic fermentation, 377, 383, 



388 

 Alga, 392, 396, 436 

 Alimentary canal. Crayfish, 178, 



207; Earthworm, 241, 253,267; 



Frog, 10, 15, 45; Mussel, 308, 



320 ; Snail, 274, 284 

 Alinasal process, 13, 64 

 Alternation of generations, Chara, 



435; Fern, 451 

 Ambulatory appendages, 175, 197 

 Amoeba, 369 — 376 

 Amoeboid movement, 123 

 Anabolism, 381 

 Anacharis, 442 

 Angulo-splenial, 62 

 Annulus, Fern, 449, 457 ; tym- 



panicus, 118 

 Anodonta cygnea, 305 — 341 

 Antenna, 176, 200 

 Antennule, 176, 201 

 Anther, 460, 465, 477 

 Antheridium, Chara, 431, 433, 



439 ; Fern, 450, 458, 466 



Antherozoid (see Spermatozoid) 



Antipodal cells, 479 



Anus, Crayfish, 179; Earthworm, 

 241, 249 ; Mussel, 307 ; Snail, 

 281, 283 



Aorta, Frog, 19, 20, 86; Snail, 

 293; anterior, Mussel, 326; 

 Snail, 294, 299; posterior. 

 Mussel, 326; Snail, 294 



Aortic arches, 20, 85, 89, 92 



Apical cell, Chara, 432, 438; 

 Fern, 448, 455 



Appendages, Chara, 430 ; Cray- 

 fish and Lobster, 174, 176, 177, 

 192, 195 ; development of, 237, 

 238 



Aqueduct of Sylvius (see Iter) 



Aqueous humour, 117 



Arachnoid, 10 



Archegonium, 450, 459, 466 



Archenteron, Crayfish, 187, 236; 

 Frog, 167, 170; Snail, 303 



Artery, antennary, 225; antero- 

 ventral, 224; carotid, 18, 20, 

 85 ; coeliac, 88 ; coelicao-mesen- 

 teric, 87, 88 ; common iliac, 87; 

 gastric, 225 ; genital, 87 ; he- 

 patic, 180, 224 ; hypogastric, 

 87 ; inferior abdominal (see pos- 

 tero-ventral) ; inferior mesen- 

 teric, 87, 88 ; ophthalmic, 224; 

 pedal. Mussel, 326 ; postero- 

 ventral, 225 ; pulmo- cutaneous, 

 19, 20, 86; renal, Crayfish, 226; 

 Frog, 87 ; rostro-antennary,225; 

 splenic, 88; sternal, 180, 224; 

 subclavian, 86 ; superior ab- 



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