264 



INDEX 



Cuvier, ducts of, 206, 208, 226 

 fate of, 232 

 vestiges of, 232 



Cyclostomata, liver- parenchyma in, 174 

 head-segmentation in, 249 

 development of eye-muscles in, 248 

 Cytoblast, Van Beneden, 74 

 Cytomicrosomes, 2 



DECIDTTA, structure of, 67, 68, 69 



reflexa, or capsularis, 69 



serotina, or basalis, 69 



basalis, degeneration of, 77 



vera, 68 



stratum spongiosum of, 68 



stratum compactum of, 68 

 Decidual cells of Friedlander, 68 

 Deiters, sustentacular cells of, 148 

 Delage, on artificial parthenogenesis in Echinus, 



17 



Denis, on rudiment of utricle and saccule, 146 

 Deutoplasm, 2, 10 

 Diaphragm, development of, 241, 243 



origin of muscular tissue in, 243 



nerve -supply of, 243 

 Diencephalon, 115 



Disc, intervertebral, development of, 250 

 Discus proligerus, 9, 191 

 Disse, on decidual cells in rats and mice, 67 



cloacal plate, 201 



development of olfactory nerve in birds, 



155 



Dixon, A. F., on origin of sheath of Schwann, 

 100 



great superficial petrosal nerve and chorda 



tympani, 132 



Dog, origin of lateral mesodermic sheets in, 

 Bonnet, 39 



blastoporic aperture in, Bonnet, 43 



notochord in, origin of head end of, 



Bonnet, 49 



Dohrn, cell-chain theory of nerve-fibres, 99 

 Dorsiflexion in early embryos, 82 

 Dorsum sellae, origin of, 106, 254 

 Driiner, on origin of auditory ossicles, 260 

 Duct, vitelline, formation of, 55 



Wolffian, development of, 178 



bile, origin of, 173 



of Santorini, 175, 176 



of Wirsung, 175 



Stenson's, development of, 165 



Mullerian, 193 



ejaculatory, 192 



lacrymal, 144 

 Ducts of Cuvier, 206, 208, 226, 232 



genital, development of, 186 

 Ductus arteriosus, 219, 233, 235 



Imgualis, 168 



thyreoglossus, 168 



thyroideus, 168 



venosus (Arantii), 226, 233 

 Duodenal loop, formation of, 161, 246 



lumen, occlusion of, 163 



EAR-VESICLES, appearance of, 83 



external, 88, 258 



development of, 145 



middle, 149 

 Ebner, von, on zona radiata, 8, 9 



division of sclerotomes in Reptilia, 250 



Echidna, cloaca in, 203 



thyroid cartilage in, 167 



lateral thyroid in, 169 

 Echinoderm, fertilisation in, 14 

 Ectoderm, embryonic, formation of, 29 



cells in mesenchyme, 59 



organs derived from, 93 



origin of early mesoderm from, in Tarsius, 



34 

 Egg-protoplasm, structure of, 9 



tubes of Pfliiger, 190 

 Ejaculatory duct, 192 

 Elliot-Smith, area paraterminalis of, 118 



on rhinencephalon, 122 



neopallium, 122 



fasciculus prsecommissuralis of, 124 

 Embryo, head end of, origin of, 47 



situation of growth centre in, 47 



estimation of age of, 80 



general history of development of, 80 et 

 seq. 



separation of, 52, 53 

 Embryonic ectoderm, 29 



axis, development of, 35, 37 



cell -mass, 26 



vessels, theories as to origin of, 61 

 Eminence, collateral, 124 



Mullerian, 194 

 Endolymph canal, 146 



saccule, 146 



Endothelium, lining of heart-tube, 210 

 Entoderm, primitive, formation of, 27 



primitive, formation of, by invagination 

 in holoblastic ova, 43 



early mesoderm from, in Semnopithecus, 

 34 



organs derived from, 93 



development of notochord from, in Am phi - 



oxus and Reptilia, 46 

 Entodermic sac, formation of, 28 

 Entomeres, 43 

 Entypy of germinal area, 30 

 Ependymal lining of neural canal, 96 

 Epibolic process in segmentation, 25 

 Epididymis, canal of, from Wolffian duct, 192 

 Epiglottis, 159 



Epiphysis cerebri, or pineal body, 113 

 Epithelial plug in nostril, in second month, 88 

 Epoophoron, 192 

 Eternod, sinus ensiformis of, 60 



on blood-vessels in embryo of thirteenth 

 day, 63 



characters of thirteenth-day embryo of, 82 

 Eustachian tube, 149 



valve, 213, 233 



Excretory organs, development of, 177 

 Eye, origin of muscles of, in lower vertebrates, 

 57, 248 



development of, 136 



muscles of, 248 



coats of, 142, 143 



anterior chamber of, 143, 144 



vitreous and lens-capsule, 142 

 Eyelid, third, or membrana nictitans, 144 

 Eyelids, development of, 144 



FACE, formation of, 86, 156 

 Falciform ligament, 244 

 Fallopian tube, development of, 194 

 Falx cerebri, rudiment of, 116 



