5oo 



INDEX. 



Pedigree of Vertebrates, ii. 121 

 Pelvic girdle, ii. 278, 304 



intestinal cavity, i. 335 



Penis, ii. 423, 431 . 

 Pentadactylia, ii. 123, 302 

 Perigastrula, i. 230, 241 

 Peripheric nerve- system, ii. 228 

 Permian period, ii. 10 

 Petromyzontes, ii. 101, 120 

 Phallus, ii. 422, 431 

 Phallusia, i. 454 

 Pharynx, ii. 316, 330 

 Philology, ii 20 



comparative, ii. 21 



Philosophy, i. 17 ; ii. 456 

 Phylogenesis (evolution of the tribe), 

 i. 12 



Phylogenetic fission of the layers, 



i. 238 

  hypotheses, i. 413 



Phylogeny, i. 5, 72 



Physiogeny, i. 21, 24 

 Physiology, i. 20 



comparative, i. 20 



Physiophyly, i. 24 



Pig, i. 362 



Pigment-membrane, ii. 252 



Pithecanthropi, ii. 181 



Pithecoid theory, ii. 441 



Placenta, i. 383 ; ii. 155, 168 



disc-shaped, ii. 162, 187 



embryonic, ii. 1^60 



fcetalis, ii. 160 



girdle-shaped, ii. 162, 187 



maternal, ii. 160 



uterina, ii. 160 



Placental animals, ii. 153, 187 



Placentalia, ii. 153, 187 



Pianola, ii. 61 



Planseads, ii. 61 



Plant-animals, 



Planula, ii. 59 



Plasson, i. 130 ; ii. 43 



Plastids, i. 130 ; ii. 45 



Plastid ancestors, ii. 184 



Plastid theory, i. 130 



Plastidules, ii. 47 



Plates {lamellae), i. 303 



Plathebninthes, ii. 76 



Platyrhinw, ii. 175, 189 



Pleuro-peritoneal cavity, i. 260 



Pliocene period, ii. 11, 15 



Polydactylia, ii. 123 

 Poms genitalis, ii. 402 

 Post-glacial period, ii. 11 

 Pouch-bones, ii. 151 

 Pouched animals, ii. 149, 187 

 Prsedelineation theory, i. 37 

 Prae formation, i. 34 



theory, i. 34 



Praiputium, ii. 423, 431 

 Pressure, sense of, ii. 238 

 Primary axial skeleton, ii. 285 



age, ii. 10, 11 



germ-layers, i. 196 



Primates, ii. 169 



Primitive amnion animals, ii. 133 



animal ancestors, ii. 184 



animals, or Protozoa, i. 248 



clavicula, ii. 278 



egg (Protovum), i. 131 



fins, ii. 303 



Fishes, ii. 112, 120 



furrow, i. 226 



germ-layers, i. 195 



groove, i. 335 



intestine, i. 444 ; ii. 313 



kidney, i. 306 ; ii. 410 



ducts, ii. 406 



Mammal, ii. 142, 187 



Man, ii. 182 



mouth, i. 444 ; ii. 313 



skull, ii. 296 



slime, ii. 43 



streak, i. 299 



urine-bladder, ii. 411 



urine-sac, i. 379; ii. 411 



vertebra?, i. 346 



vertebral cords, i. 305 



vertebral plates, i. 316 



- Vertebrate (ideal), i. 256 

 (real), ii. 98 



Worm, ii. 74, 80 



Primordial cleavage, i. 198, 211 



kidneys, i. 307 ; ii. 410 



skull, ii. 297 



— times, ii. 9, 11 



Prochorion, ii. 157 

 Procoracoideum, ii. 278, 304 

 Promammalia, ii. 142, 1S7 

 Prosimia, ii. 163, 187 

 Protamosba, ii. 46 

 Protamnion, ii. 133 

 Prothelmis, ii. 76 



