INDEX. 



SOI 



Protogaster, i. 444 ; ii. 314 

 Protomyxa, ii. 46 

 Protonephra, ii. 410 

 Protoplasma, i. 131 

 Protopteru3 annecteiis, ii. 119 

 Protozoa, ii. 248 

 Protureter, ii. 406 

 Psendopodia of Amoebae, i. 143 

 Psyche, ii. 225, 446 

 Psychology, ii. 448 

 Pubic bone, ii. 278 

 Punctibm germinativum, i. 135 

 Pnpil, ii. 252, 258 

 membrane, ii. 254 



E 



Radius, ii. 278, 304 



Eathke, Heinrich, i. 59 



Eathke's duct, ii. 415, 431 



Keason, ii. 453 



Eeichert, Bogulans, i. 61 



Remak, Robert, i. 62 



Renes, ii. 412 



Eeprod action, i. 159 



Eeprodnctire organs, ii. 392, 413 



Eeptilea, ii. 120, 138 



Eespiratory intestine, i. 262 ; ii. 330 



organs, i. 262 ; ii. 333 



Retina, ii. 252, 258 

 Bibs, ii. 285 

 Kolle, Priedrich, i. 101 

 Eound-months, ii. 101, 120 

 Eudimentary organs, i. 109 

 Eump bone, ii. 282 



vertebrse, ii. 282 



Euseoni, anns of, i. 206 

 Ensconi's nutritive cavity, i. 207 



S 



Salajtandee, ii. 127 

 Salirary glands, 

 Sauropsida, ii. 138 

 Scapula, ii. 278, 303 

 Schleiden, M. J., i. 60, 123 

 Schwann, Theodor, i. 60 

 Sclerotica, i. 251, 258 



Scolecida, ii. 86 

 Scrotum, ii. 423, 431 

 Sea-nettles, ii. 73, 92 

 Secondary age, ii. 11, 14 



axial skeleton, ii. 291 



germ-layers, i. 235, 273 



kidneys, ii. 412 



sexual character, ii. 396 



strata of earth, ii. 12 



Seed (male), i. 36 



animalcules, i. 173 



cells, i. 173 



duct, ii. 403, 429 



Segmental canals, ii. 406 

 Segmentation, i. 186 

 Segmentella, i. 186 

 Selachii, ii. 112, 121 

 Selection, theory of, i. 95 

 Semi-apes, ii. 164, 187 

 Semicircular canals of ear, ii. 203, 



268 

 Semper, Karl, i. 91, 426 

 Sense of pressure, ii. 238 



of warmth, ii. 238 



Sense-organs, ii. 238 

 Sensorium, ii. 194 

 Sensory apparatus, ii. 194 



functions, ii. 238 



layer, i. 236, 229 



nerves, ii. 238 



Sexes, separation of, ii. 69, 396 

 Sexual cells, origin of, 



cord, ii. 418 



— ducts, ii. 402, 429 



folds, ii. 422, 431 



furrow, ii. 422 431 



glands, ii. 398 



nei-ves, ii. 238 



organs, i. 266 



plates, ii. 399 



selection, i. 103 ; ii. 394 



sense, ii. 238 



Sheath {Vagina), ii. 417, 431 



of amnion, i. 387 



Shin-bone, ii. 278, 30i 

 Shoulder-blade, ii. 278, 304 



girdle, ii. 278, 304 



Side-layers, i. 303 



plates, i. 303 



sheath, i. 303 



Silurian period, ii. 9, 19 

 SimicB, ii. 165 



