INDEX. 



Abstinence, 148, 148 



Acid, aerian carbonic (Quantity of 

 the), 95 



Acids, organic, secreted by the ani- 

 mal, 137 



Acid, carbonic, of disassimilation, 

 136 



Actinosphcerium (Digestion in the), 

 158 



Action, reflex, 388, 433 



(Office of the grey sub- 

 stance of the spinal marrow in the) 

 392 



Albumine of the blood, 64 



Albuminoids, albuminoidal sub- 

 stances, 13 



Albuminose, 65 



Alga and mushrooms, 107 



Alimentation in general, 172 



Aliments (of the), 465 



Aliment, complete, 468 



Aliments, quaternary, 466 



Aliments, ternary, 466 



Amoebae (Digestion of the), 1 57 



Amphioxus (Absence of hearing in 

 the), 416 



Amphioxus (Circulation in the), 196 



Amphioxus (Smell in the), 411 



(Uervous svstem of the), 



369 



Animals (Histological types), 48 



Animals, cold-blooded, 446 



Annelates (Circulation in the), 194 



Annelates (Branchial respiration of 

 the)^ 432 



Annelates (Touch in the), 408 



Antheridiou, 316 



Antherozoids, 316 



Apparatus, digestive, in the ahimal 

 series, 157 



Arachnida (Respiration of the), 233 



Arteries, 207 



(H"erves of the), 207 



(Contractile fibro-cells of 



the), 207 



Arthropods (Circulation in the), 211 



Arthropods (Muscular fibres of the), 

 350 



Arthropods (Sense of hearing in the), 

 416 



Arthropods (Digestive system of the), 

 162 



Arthropods (Compound eyes of the), 

 422 



Arthropods (Touch in the), 407 



Assimilation, 82, 86 



— animal, 1 25 



Assimilation of the albuminoid sub- 

 stances by animals, 132 



Assimilation of the hydrocarbonised 

 substances by animals, 129 



Assimilation and absorption of mine- 

 ral salts in the animal, 128 



Assimilation of mineral substances 

 by animals, 125 



Assimilation and disassimilation, 

 vegetal, 109 



Assimilation, chlorophyllian, HI 



Assimilation of azote by plants, 

 110, 469 



Asteriae (Eyes of the), 422 



Atomicity, 5 



