GENERAL INDEX 525 



Evolution of brain in brain-case, 210 



cranium of Vertebrate, 342 



excretory organs, 389 



eye of Vertebrate, 114 



nervous system, central, 34 



tissues, 19 



Vertebrate from Balanoglossus and Ampbioxus, 33 

 Eyes, 68 



„ lateral, 87, 105, 108 



,, median or pineal, 74, 77, 78, 79 



Fat-cells in muco-cartilage, 332 

 Fat-column of Ammoccetes, 181, 182 

 Fibres, Mautbnerian, 488 



,, Miillerian, of Ammoccetes central nervous system, 489 

 retina, 96, 107 

 Fisbes, classification, 218 



,, ancient, classification, 326, 343 

 ,, ,, cloacal region, 450 



,, ,, dominance, 23 



eyes, 75 

 ,, ,, bead-sbields. See Head-sbields 



,, ,, pleural folds, 414 



Fissure, posterior, 43 

 Fittest, survival of, 16, 34 

 Flabellum, 359, 360, 362, 363, 366 

 Folds, pleural, 410, 414 

 Function of auditory organ, double, 358 

 ,, lateral line sense-organs, 357 



,, nerves, 448 



tbyroid, 212, 215 

 Fusion of ganglia, 52 



Galeodes, 230 



„ brain, and camerostome, 222, 223 



,, primordial cranium, 341 



,, racquet-organs, 369, 375 



Ganglia, infraoesopbageal, 4, 12, 14, 51, 221 



supraoesopbageal, 4, 12, 14, 49, 52, 221, 225 

 ,, origin of, of cranial and spinal nerves, 281 

 Ganglion, epibrancbial, 164, 282 

 ,, babenulse, 48, 78 



optic of retina, 72, 89, 97 

 ,, of posterior root, 466 



cells of sympathetic system, 424, 428, 448 

 Ganoids, 23, 345 

 Gastrula theory, 165, 459 

 Genital corpuscles, 470 

 Geological record, 20 

 ,, strata, 22 

 Geotria australis, 80 

 Germ-band, 482 



