INDEX. 



477 



Herbivora (Urine of the), 270 

 Hermaplirodism,autofec\mdatory,323 

 Hirndinates (Circulation in the), 195 

 (Sense of smell in the), 



411 

 Histology of vegetals, 43 



of animals, 47 



Histological (Elements), ZS 

 Holothuria (Respiration of the), 432, 

 Humours, 55 

 (Chemical composition of 



the), 55 

 Humours (Produced), 56 

 (Constituent), 57 



-(Secreted), 261 



Humour, aqueous, of the eye, 425 

 Hydroids (Movements in the), 348 



I. 



Influx, nervous, 396 



Innervation, 361 



Insects (Temperature of), 446 



(Respiration of), 231 



Intestinal (Digestion), 188 

 Intestinal (Juice), 191 

 Invertebrates (Temperatui-e of), 444 



L. 



Law of definite proportions, 4 

 Layei-s, optical, 371, 373, 384, 434 

 Layers, optical (Centres receptive of), 



440 

 Leaves (Cause of the fall of), 283 

 Leucippus (Atomic theory of), 2 

 Leucocytes, 71 

 Leucocytha-mia, 72 

 Life (Of), 28 



Life (Temporary suspension of), 29 

 Life (Definition of), 33, 31 

 Life (Primordial phenomena of), 72 

 life (Is less lasting when the organism 



is less differentiated), 294 

 Life (Variable duration of), 296 

 Liquids, living, 51 

 ],iver (Capillaries of the), 169 



(Cells of the), 168 



Lungs, 231, 237 



(CapiUaiies of the), 241 



Lungs, Gas of the), 241 



(Change of colouration of 



blood in the), 246 

 Lymph (Of the), 73 

 Lymph, plastic, 72 

 Lymphatic system (Functions of the), 



74, 226 

 Lymphatic (Circulation), 222 

 Lymphatic (Glands) of Peyer, 224 



M. 



Mammifbes (Taste in the), 410 

 (Temperature in the), 



446 

 Marrow, spinal, 383 

 Matter, organised, in general, 1 

 Matter (Constitution of), I 

 Media (Of), 83 

 Media (Interior) 83 

 Medusae (Digestive system of tiie), 



160 

 Medusae (Nervous ' system of the), 



362 

 Medusse (Rudimentary eye of the), 



421 

 Mimosa pvdica (Movements of the), 

 , 345 

 Mifiwsa pudica (Causes of the move- 

 ments of the), 346 

 Molecules, 5 

 MoUusks (Digestive system of the), 



163 

 MoUusks (Circulation of the), 195 



■ (Respiiation of the), 234 



(Muscular fibres of the), 



349 

 Mollusks (Nervous system of the), 



368 

 Mollusks (Sense of touch in the), 



407 

 Mollusks (Sense of hearing in the), 



416 

 Mollusks (Eyes of the), 422 

 Monstrosities, artificial, 292 

 Motility, 339 

 Motricity (Of), 388 

 Movements, vital, molecular, 32 

 Movements, Brownian, 339 

 Movements, in the vegetal kingdom, 



343 



