Talk:Book - Vertebrate Embryology (1913) 2

From Embryology

Index Op Subjects And Authors

Absorption by colls, 12, 217, 246.

- of water, 15. Acanthias, 27. Acanthocystis, 57. Acipenser, 36, 41, 52, 102, 127. Acrosome, 48, 54, 56, 81. AcpyprymmLS, 194.

Afferent branchial arteries, 168. Agar, 69.

Aggregation of cells, 11. Au'-chamber, 48, 190. Albumen, 46, 47.

- sac, 187, 190. Albumin, 226.

Alimentary canal, 107, 110 sqq., 128,

139, 143, 150, 169, 179. Allantoidean, 236, 244. ADantoin, 226.

AUantois, 108, 181, 183, 188 sqq., 192,

203 sqq., 246. Amblystoma, 15. Amia, 35, 38, 40, 102, 103, 127. Amitosis, 104.

Amnion, 171, 175, 181, 183, 187 sqq., 194 sqq.

Amnion, false, 108, 183, 187 sqq. Amniota, 106, 107, 111, 134 sqq., 147, 171 sqq.

Amniotic thickenings, 226 ; bodies, 227.

Amphibia, 15, 16, 27, 36, 39, 40, 43, 46, 47, 49, 77, 78, 86, 95, 102, 129, 190.

Anamnia, 107, 111, 133, 147. Anastomoses, 12, 174. Animal pole, 40, 95. Annelids, germ-cells, 35 ; polar rings, 35.

Annular zone of trophoblast, 216, 246. Anterior abdominal vein, 190. Anterior intestinal portal, 180. Anthropoidea, 209, 255. Anti-mesometric pit, 234, 239.

- placenta, 241, 243, 246. Anura, 129.

Anus, 153, 154.

Aorta, 168, 179, 180, 183.

Aortic arches, 180, 181, 182.

Archenteron, 111 sqq.

Area, increase of, 12.

Area opaca, 172; peUucida, 172, 174;

vasculosa, 170, 172, 177, 183 sqq.,

203, 241, 246.


Arterial arches, 168, 169, 180, 182. Arteries, branchial, 155, 169, 182 ;

umbilical, 188 ; vitelline, 171, 180. Artificial parthenogenesis, 87, Arvicola, 195. Ascaris, 34. Ascidians, 35. Assheton, 107, 143, 201. Auditory vesicle, 161, 170, 176, 180. Auricle, 180.

Axial filament, 48, 54, 56, 57. Axis of ovum, 40, 95, 111. Axolotl, 41, 51, 52, 64, 77, 78, 81 sqq., 130.

Balbiani, 72.

Balfour, 213.

Balfour's rule, 99.

BaUowitz, 50, 51.

Basal cells, in testis, 58, 59.

Bat, 74, 145, 195, 208, 241, 242.

Bddlostoma, 120.

Van Beneden, 145, 202, 204, 240.

Bilateral egg structure, 89, 90, 100.

- segmentation, 97.

- closure of blastopore. 111, 113, 147. Bile-pigments, 48, 225, 246. Bilirubin, 225.

Biliverdin, 232.

Binucleate cells, 224.

Birds, 29, 36, 37, 40, 43, 46, 47, 49, 77,

78, 86, 90, 103, 105, 139, 190. Bladder, 169, 182, 190, 192. Blastocoel, 97, 98, 132, 171. Blastocyst, 107-9, 195, 263. Blastoderm, 104, 107, 120, 129, 131,

133 sqq., 143, 147 sqq., 171, 187. Blastomere, 96.

Blastopore, 111 sqq., 147 sqq., 172. Blastula, 98. Blood, 168, 174. Blood-clot, 253. Blood-islands, 173, 174, 177. Blood-vessels, 168, 179. Bomhinator, 50, 51. Bone, 11.

Bonnet, 144, 205, 206. Bos, 52, 220 sqq. Brain, 153, 158, 175. Branchial arches, 155, 169, 182. Branchial arteries, 168, 169, 182. Branchial clefts, 169, 182. Brauer, 131 sqq.

Broman, 51. Bryoe, 253. Budding, 9, 35. Bufo, 15, 51, 52, 129. Butyric acid, 87.

Calcium oxalate, 226. Oanis, 36, 144, 205, 229 sqq. Capillary, 174, 179 ; of placenta, 216,

217, 220, 224, 229, 230, 236, 237,

238, 240, 244, 250. Capsule of kidney tubule, 177. Cardinal veins, 167, 168, 179. Carnivora, 204, 229 sqq., 255, 256. Carotid gland, 169. Caruncle, cotyledonary, 220, 221. Cat, 31, 229 sqq. Catarrhines, 248. Caudal swelling, 122. Gavia, 17, 18, 20, 31, 36, 49, 50, 52,

55, 74, 108, 195-7, 203, 204, 239,

253.

Cavity, of segmentation, 97, 98, 132, 171.

- subgerminal, 135, 149, 171 ; peritoneal, 167 ; pleural, 177 ; pleuroperitoneal, 168, 177 ; of amnion, 188 ; of trophoblast, 200.

Cebus, 248.

Cell-division, 10, 14, 88, 100. Cell-layer of Langhans, 260, 251, 254. Centeies, 243.

Centrosome, 48, 54-7, 65, 78, 83-5. Centrosphere, 54-7, 74, 78. Cephalopoda, 34. Ceratodua, 41, 102, 128, 150. Cercocehus, 210, 248, 249. CerebeJlum, 158. Cervical flexure, 168, 181. Cervus, 220. Cetacea, 208, 226, 255. Chalaza, 46.

Change of growth-rate, 17, 22.

Cheiroptera, 203, 207, 218, 241 sqq.

Chemistry of yolk, 37 ; of egg-membranes, 46, 47 ; of spermatozoon, 52.

Chick, 15, 139-143, 171 sqq.

Cholesterin, 38, 47, 52.

Choloepus, 207, 227.

Chorda-canal, 134, 145.

Chordal sheath, 169

Chorio-basaHs, 252.

Chorion, of ovum, 45 ; (false amnion) 187, 192 ; laeve, 251 ; frondosum, 251,

Chorionic villi, 218, 255 ; vesicles, 227. Choroid, 161. Choroid fissure, 159, 161. Chromatin, 23, 66 sqq., 78 sqq., 85, 87, 92, 93.


Chromatoid accessory body, 55. - body, 74.

Chromosomes, number of, 23, 66 sqq., 78 sqq. ; division of, 79 ; accessory, 81 ; in fertilization, 85 ; in inheritance, 80, 87, 92, 93.

Chryaemys, 28.

Cilia, 165, 221.

Cijiiary processes, 160.

Cleavage, 95 sqq.

Closure of blastopore. 111 sqq.

Clot, 263.

Clupein, 52.

Coelom, 164, 165, 177.

Colour of yolk, 37, 38 ; of egg-shell, 48.

Concrescence of layers, 13. Connective tissue, 166, 169. Contraction figure, 65, 72. Contra-deciduate, 217, 246. Convergence of chromatic filaments,

66, 72. Compacta, 251, 252, 255. Composition, 11. Cord, spinal, 156, 175. Cords, medullary, 31 ; sex, 31, 34. Cornea, 161. Corpus luteum, 44. Corpuscles, blood, 168. extravasation of, 220, 224, 225,

227, 232, 236, 240, 246, 251. Cortex of ovary, 31. Cotyledon, 219. Cotyledonary, 219. Cow, 220 sqq. Cranial flexure, 158, 181. Crest, neural, 164, 156. Grocodilus, 52. Cross-furrow, 96. Crura cerebri, 158. Crustacea, 57.

Crypts, 219, 221 sqq., 226, 227, 229, 246.

Cumulus proUgerus, 43. Cuticle of egg-shell, 47. Cutis, 166. Cyclops, 34.

Cyclostomata, 118, 162,

Cymatogaster, 27.

Cysts, of testis, 57, 59.

Cytoplasm, increase of, 21 ; significance of in development, 43, 73, 74, 92, 93, 102, 150.

Cyto-trophoblast, 236, 240, 264.

Dasypus, 227.

DasyuTus, 36, 40, 48, 107, 194, 216, 217.

Davenport, 14, 15, 16. Dean, 120, 127.


INDEX OF SUBJECTS AND AUTHORS


261


Decidua, 218.

- basalis, 249 sqq.

- oapsularis, 243, 249 sqq.

- reflexa. 243, 244, 245, 248. sqq.

- serotina, 249 sqq.

- vera, 249 sqq. Decidual cells, 251. Deciduato, 215, 217, 229, 256. Deciduofracts, 244. Deciduous, 218, 254. Degeneration of uterine epithelium,

220, 229, 230, 234, 239, 241, 244,

245, 248, 252. Determination of sex, 81. Development, defined, 9. Dextrose, 47, 226. Diaphragm, 177. Dictyate, 32, 33, 73. Diddphys, 36, 194, 216. Differentiation, 10, 14, 151.

- histological, 11.

- and senescence, 21 ; and segmentation, 102.

Diffuse, 219. Dimorpha, 57. Diplotene, 32, 59, 66, 72. Dipnoi, 128. Discoglossus, 49, 52. Discoidal segmentation, 104.

- placenta, 232, 239, 241, 242, 243. Discus proligerus, 43. Dispersion of elements, 13. Ditrematous Mammalia, 191 sqq. Diverticula allantoidis, 206, 220. Division of cell-masses, 13 ; of cells,

14, 95 sqq. ; of chromosomes, 78, 79.

Dog, 36, 144, 205, 229 sqq. Dorsal division of blastopore, 153.

- lip of blastopore. 111 sqq.

- placenta, 248.

- roots, 156, 163, 164. Duct, pronephric, 167. Ductus Cuvieri, 168, 181. Ductus endolymphaticus, 162. Duval, 190, 205, 231, 240.

Ear, 161, 162.

von Ebner, granules of, 57, 59. Echidna, 36.

Ectoderm, 108, 110 sqq., 156.

Edentata, 207, 227.

Edge of blastoderm, 122-7, 131.

Efferent branchial arteries, 108.

Elagmobranchs, 27, 36, 37, 40, 43, 46, 47, 49, 71, 78, 80, 90, 103, 105, 120 sqq., 130, 150, 162, 165, 170.

Elementary organs, 10.

Elephas, 208, 227, 256.

Embryonic area, 143.


Embryonic knob, 108, 143, 195 sqq.

- plate, 198 sqq.

- shield, 105, 107, 135, 143, 144, 148. End-knob, 48.

Endoderm, 105, 107, 110 sqq., 150. Endothelium, 168, 174, 179, 240, 241, 256.

Entrance-cone, 81. Entrance-funnel, 81. Epidermis, 150.

Epithelium, germinal, 26 ; of lens, 160 ; of uterus, 219 sqq., 220, 226, 229, 230, 234, 239, 241, 244, 245, 248, 252.

Equator, of ovum, 40, 95.

Erinacells, 36, 52, 195, 198, 207, 2435, 253.

Esox, 52.

Eustachian passage, 169, 182. Eutheria, 216. Evagination, 12.

Extra-embryonic coelom, 179, 187,

196, 209, 246. Extravasation, 220, 224, 225, 227,

232, 236, 240, 246, 251. Eye, 159 sqq. Eyeball, 161.

Factors, external, 16.

Fallopian tube, 221, 226.

False amnion, 108, 183, 187 sqq., 192.

Farmer, 69.

Fat, 37, 38, 44, 47, 52, 204, 220, 224,

232, 234, 238, 251. Feather-star, 92. FehHng, 16.

Ferment, glycogen splitting, 241.

Fertilization, 81, sqq., 221.

Fibres, of lens, 161 ; of nerve roots,

156, 157 ; of optic nerve, 161. Fibrin, 232, 251. Filament, axial, 48, 54-7. Fin, 155.

Flagellate spermatozoon, 48. Flattening of egg, 35, 95. Flexure, cranial, 158, 181 ; cervical, 181.

Foetal membranes, 183 sqq. ; of

mammals, 192 sqq. Folds, medullary, 154, 156. Follicle, 28, 32, 43-5, 221 ; cells of

ovary, 25, 32 ; of testis, 57 Food, 15.

Fore-bram, 153, 158, 175, 180. Fore-gut, 180. Fringilla, 50.

Frog, 15, 27, 35, 36, 37, 86, 89, 95 sqq..

Ill sqq., 147, 149, 150, 153 sqq. Funnel, pronephric, 167. Fusion of cell aggregates, 12.


INDEX OF SUBJECTS AND AUTHORS


Oalago, 227. Ganglia, 154, 156. Ganoids, 36, 46, 127. Gastrulation, 111 Genital ridge, 26.

Germ-cells, vehicles of inheritance, 9, 23 sqq.

Germ-layers, 10, 110 sqq., 196 ; inversion of, 197. Germ-number of chromosomes, 66, 67. Germinal epithelium, 26, 29.

- vesicle, 41.

- wall, 171. Gibbon, 248, 251. GiU-plate, 154. Gill-slits, 169, 180, 181, 182. Gills, 155, 168.

Giraffa, 220.

Glands of uterus, 204, 221, 229, 230

232, 246, 252, 253. Globules of yolk, 36. Glomus, 167.

Glycogen, 220, 225, 226, 236, 237, 239,

241, 251. Graafian follicle, 43, 221. Granules of von Ebncr, 57, 59.

- of yolk, 36, 73.

Gray crescent, 89, 98, 100. Green border, 232. Growth, 10, 15 sqq., 23, 73. Guinea-pig, 17, 18, 20, 31, 36, 49, 50, 52, 55, 74, 108, 195-7, 203, 204,

239, 253.

Gymnophiona, 36, 40, 102, 111, 131 sqq., 136, 147, 148.

Haematochlorine, 232. Haematogen, 38. Haematoporphyrin, 225. Haemoglobin, 220, 225, 227, 232, 246.

Haemorrhage, 220, 224, 227, 232, 236,

240, 246, 251. Halicore, 208, 226. Halmaturus, 194. Head, length, 20. Head-fold of amnion, 175, 181. Head-process of primitive streak, 172. Head somites, 161, 162-4.

Heart, 167, 168, 170, 179. Heat, 229.

Hedge-hog, 36, 52, 195, 198, 207, 243-5, 253.

Hemispheres, 158, 181.

Herlant, 86.

Herring, 52.

Hertwig's rules, 99, 100.

Heterochromosomes, 81.

Heterogeneous hybridization, 92.

Heterotypic, 59, 67, 74, 75, 77.


Hill, 107, 143, 193, 217. Hind-brain, 153, 158, 175, 180. Hind-gut, 180. Hippomanes, 206, 225, 227. Holoblastic, 94.

Homo, 19-21, 36, 52, 197, 209, 212.

218, 248 sqq. Homoeotypic, 71, 78. Homology, 151. Horse, 205, 219.

Hubrecht, 198, 201, 207, 209. 210.

234, 243, 245, 247. Human embryo, 15, 18, 19, 211-14.

218, 248 sqq. Hybridization, 92. Hydroids, germ-cells, 34. Hylobates, 248, 251. Hyoid arch, 155, 168, 109, 182. Hyomandibular cleft, 169, 182. Hyperaemia, 229. Hypertonic sea-water, 87. Hypertrophy, 220, 229. Hypogeophis, 131. Hyracoidea, 227. Hyrax, 227, 256.

Ichthulin, 38. Ichthyophis, 131. Idiozom, 54.

Increments, percentage, 16.

Indeciduate, 217, 218-28, 255.

Individuality of chromatin and chromosomes, 75.

Infundibulum, 159, 175.

Inheritance, chromosomes in, 80, 87 ; cytoplasm in, 92, 93.

- mechanism of, 9. Inner mass, 108, 143, 195. Insectivora, 203, 207, 218, 243 sqq. Intermediate cell-mass, 164, 165, 176;

segmentation, 102 ; vitelline veins, 186.

Interruptions of continuity, 13. Invagination, 12. Investment by cells, 12. Iris, 160.

Iron, 220, 224, 225, 246. Iso-bilateral segmentation, 97. Iter, 158.

Jelly, 46. Julin, 204.

Keratin, 46, 47. Kerr, 128.

Kidney, 164, 165, 177. King, 51.

Knob, embryonic, 108, 143, 195.

- end, 48. von Korff, 50.


Labyrinth, IGl. Lacerta, 47, 135.

Lacunae, 232, 236, 240, 241, 244, 248,

253-5. Lamellae, 230.

Lamprey, 27, 35, 36, 37, 46, 86, 102,

119, 129, 149, 150, 163, 170. Langhans, 250, 251, 254. Large-yolked, 39, 103. Latebra, 40.

Lateral amnion folds, 176, 187.

- lips of blastopore, 112 sqq.

- plate, 162, 176.

- vitelline veins, 186. Latitudinal, 96. Layers of yolk, 40. Lccitliin, 38, 47, 52. Leg, length, 20.

Lemuroidea, 208, 227, 255, 256. Length of head, 20 ; of leg, 20 ,• of

spermatozoon, 52 ; of vertebral

column, 20. Lens, 159, 160, 161, 181. Lepidosiren, 102, 128, 129, 147, 149,

150, 170. Lepidosteus, 36, 40, 102, 103, 170. Leptotene, 59, 64, 72. Lepus, 29, 36, 196, 201, 203, 239-41. Leucocytes, 217, 220, 225, 229, 246. Lillie, 190. Liquor amnii, 188. Liquor foJIiculi, 43. Liver, 169, 182. Longet, 213, 249. Longitudinal division, 79. Loss of yolk, 203 ; of shell, 203. Lower layer, 104, 107, 122, 135, 143,

149, 150, 171, 195. Lumen uteri, reformed, 234, 238, 239. Lungs, 167, 169, 182. Lutein, 38, 44, 47.

Macacus, 248. Mackerel, 52. Magma, 73, 74.

Mammalia, 29, 36, 46, 71, 77, 78, 143,

177, 190, 192 sqq. Mammillary sheet, 47. Man, 19-21, 36, 52, 197, 209, 212, 218,

248 sqq.

Mandibular arch, 155, 168, 169, 182 Manis, 227.

Marsupialia, 46,47, 48, 107-9, 143, 193

216, 255. â–  Maturation divisions, 23, 59, 62 sqq. Mechanical shock, 87. Mechanism of inheritance, 9. Medulla oblongata, 158. Medulla, of ovary, 31. Medullary folds, 153, 156, 174


Medullary groove, 156, 174.

- plate, 153, 174.

- tube, 154, 156, 174. Megalecithal, 39. Megalokaryocytes, 236, 248. Meiotic, 67.

Membrana elastica interna, 169. Membrane, in fertilization, 89. Membranes of ovum, 45-8; of foetus,

183 sqq., 192 sqq. Meridional, 95. Meroblastic, 103. Merocyte, 86. Merogony, 87. Mesentery, 168.

- germ-cells in, 27. Mesocardium, 168, 179. Mesoderm, 110 sqq., 162 sqq. Mesometric placenta, 232, 239, 242,

247.

Mesonephros, 177.

Metameric segmentation,156, 162, 164. Metamorphosis of spermatid into

spermatozoon, 52 sqq. Metanephros, 177. Metatheria, 216. Methods, in embryology, 9, 10. Meves, 50, 53, 55, 68. Microlecithal, 36, 95. Micropyle, 46. Mid-brain, 153, 158, 175. Middle-piece, of spermatozoon, 49. Migratioii, of cells, 11 ; of germ-jcells,

27 sqq. Minot, 17-21, 213. Mitosis, 62. Mitsukuri, 138.

Mole, 31, 36, 195, 207, 243, 245. Mollusc, 92.

Monkeys, 197, 209, 212, 218, 248 sqq. Monotremata, 36, 43, 47, 48, 103, 106,

107, 143, 192. Montgomery, 69.

Mouse, 31, 36, 52, 59, 86, 145, 195,

200, 203, 232 sqq., 253. Movements of cells and cell aggregates

11-13. ^ Mucin, 47, 226.

Mus, 31, 36, 52, 59, 86, 145, 195, 200,

203, 232 sqq., 253. Muscles of eye-baU, 161 ; of trunk

and limbs, 166. Muscular wall of heart, 168, 179 Mycetes, 248, 249, 251. Myocoel, 165, 166, 177. Myotom, 166, 177. Myrmccophaga, 227. Myxine, 71.

Myxmoids, 35, 36, 40, 46, 103, 120,


Neck, of spermatozoon, 49. Nephrocoel, 165, 177. Nephrotom, 165, 166, 176, 177. Nerves, cranial, 154, 156, 162, 163 ;

spinal, 154, 156. Nervous layer, 160, 162.

- system, 153, 156, 170, 175, 181. Neural crest, 154, 156, 162, 163, 181. Neurenteric passage, 134, 142, 145,

153, 154, 170. Newt, 63, 86. Nolf, 208, 242. Nostril, 161.

Notochord, 110 sqq., 169, 172, 174. Nuclear contributions to cytoplasmic

structure, 73, 74. Nucleic acid, 52. Nuclein, 52.

NucleoU, 72, 73, 236, 248.

Nucleo-plasma ratio, 22, 99.

Nucleo-protein, 38, 73.

Nucleus, decrease of, 21 ; in inheritance, 80, 87, 92, 93 ; of ovum, 41 ; of spermatozoon, 48.

Nuclei in yolk, 103, 104.

ObUques, 161, 162. Oestrus, 220, 221, 229. Oil, 37.

Olfactory pit, 155, 161.

- sac, 161, 170. Omphaloidean, 236, 238, 244. Oocyte, 25, 31.

Oogonia, 24. Operculum, 155. Ophthalmicus, 163. Optic cup, 159, 181.

- lobes, 158.

- nerve, 161.

- stalk, 159, 16'1.

- vesicle, 159, 170, 180, 181. Orang, 248, 251.

Orca, 208, 227. Oreas, 220.

Organ-forming substances, 43, 102, 150.

Origin of germ-cells, 26 sqq. Ornithorhynchus, 36, 48, 144. Oryckropus, 227, 256. Ostracoda, 52. Outer layer, 108, 195. Ovary, formation of, 30, 31 ; of tadpole, 72. Ovis, 36, 196, 220 sqq. Ovo-albumin, 47. Ovo-mucoid, 47. Ovo-vitellin, 38. Ovulation, 43, 221. Ovum, 23, 35 sqq.


Pachytene, 32, 59, 66, 72.

Pairing of chromatin filaments, 65, 80.

Pancreas, 169, 182.

Parablast, 105.

Paraderm, 105.

ParathjToid, 169.

Parthenogenesis, 87.

Partial segmentation, 103.

Parturition, 238.

Peramdes, 194, 217.

Perca, 51.

Perforation of floor of archonteron, 148.

Perforatorium, 48, 54. Periblast, 91, 104. Pericardium, 168, 177, 179. Periods, in history of germ-cells, 23. Peritoneal cavity, 167, 177. Peritoneum, 168. Perivitelline fluid, 89. Peters, 211, 253.

Petromyzon, 27, 35, 36, 37, 46, 86, 102,

119, 129, 149, 150, 163, 170. Pfluger, 31, 100.

Phagocytosis, 12, 213, 221, 224, 229,

230, 231, 236, 242, 244, 246. Phalangista, 49, 50. Phascolarctos, 48, 194. Phosphatides, 38. Pig, 195, 219.

Pigment layer of retina, 159.

- of cornea, 161; of ovum, 40; of uterus and placenta, 220, 225, 227, 232, 246.

Pituitary body, 169, 181. Pineal body, 159. Placenta, 192, 215 sqq.

- reflexalis, 252.

Placental mammals, 35, 36, 39, 41,

46, 48, 108, 194 sqq., 217 sqq. Placentoid, 248. Plane, of symmetry, lOO.

- sagittal, 112.

Plasmodi-trophoblast, 236, 240, 254. Platelets of yolk, 36. Platydaclylus, 135. Platyrhine, 248. Pleural cavity, 177. Pleuro-peritoneal cavity, 168, 177. Polar bodies, 25, 77.

- furrow, 96.

- rings of Annelids, 35. Poles of egg-axis, 40. Polyspermy, 86. Pontocypris, 52. Post-anal gut, 170. Posterior cardinal vein, 1G7.

- intestinal portal, ISO.

- vitelline vein, 186. Potts, 15.

Primates, 203, 218, 227, 24G sqq. Primitive groove, 139 sqq., 172, 174.

- plate, 107, 135.

- streak, 139 sqq., 172. Primordial germ-cells, 23 sqq., 2C sqq. PrisHurus, 86.

Pro-amnion, 172, 194. Proboscidea, 208, 227, 255. Proctodaeum, 153, 154, 156, 169. Pronephros, 166, 167, 177. Pronucleus, 83, 87. Pro-oestrus, 220, 221, 229. Prophases of first maturation division,

23, 25, 64, 65, 71, 72. Prosencephalon, 158. Protamine, 52.

Protein, 37, 38, 47, 204, 220, 224, 232, 238.

Proto vertebrae, 162. Protozoa, 57. Pteropus, 242.

Qualitative division, 79. Quantitative division, 79.

Rabbit, 29, 36, 196, 201, 203, 239-241. Radial type of cleavage, 96. Haia, 52.

Sana, 15, 27, 35-7, 86, 89, 95, 97,

111 sqq., 147, 149, 150, 153 sqq. Rate of division, 100.

- of growth, 16 sqq.

Ratio of nucleus to cytoplasm, 22, 99. Rauber's cells, 195 sqq., 234. Re-arrangement of material, 13. Recti, 161, 162.

Reduction of number of chromosomes, 24, 66 sqq., 78 sqq.

- of plasma-nucleus ratio, 22, 99. Regeneration, 9, 35.

Reptiles 28, 36, 40, 46, 47, 49, 78,

86, 103, 105, 135 sqq., 190. Respiration, 188, 224. Retina, 158-160. Retro-peritoneal tissue, 28. Ridge, genital, 26. Ring-shaped centrosome, 54, 66.

- chromosomes, 59, 66, 75. Rodents, 200, 203, 218, 232 sqq. Roots of nerves, 156, 157. Rotation of frog's egg, 113, 114; of

sperm-head, 83. Riickert, 86. Rule of Balfour, 99.

- of Hertwig, 99, 100. Ruminants, 220.

Sagittal plane, 111. Salamander, 53. Salmin, 62.


Salmon, 27, 52, 86. Salmonidao, 10.0. Salts, 38, 47, 220. Sarasin, 131. Schauinsland, 142. Schreiner, 69. Sciurus, 203, 239. Sclerotic, 161. Sclerotom, 165, 177. Scombrin, 52. Scorpions, germ-cells, 34. Scott, 119.

Secretion of cells, 221, 229, 230. Segmental duct, 177. Segmentation, 95 sqq. ; significance of 22 99.

- cavity, 97, 98, 132, 171.

- of mesoderm, 162 ; of neural crest, 156.

Selenka, 197, 198, 211. Seminiferous tubules, 34, 57. Semnopithecits, 248. Semon, 128, 193. Senescence, 21. Sense organs, 156, 181. Sense-plate, 154.

Septa of yolk-sac, 187 ; of placenta, 251.

Sero-amniotic connexion, 188. Serosa, 187. Serranus, 125 sqq. Sertoli, cells of, 58-60. Sex, cords, 31, 34.

- determination of, 81. Sheep, 36, 196, 220 sqq. Shell, 45, 47, 48, 172.

- loss of, 203. Shell-membrane, 47, 48.

Shield, embryonic, 105, 107, 135, 143, 144.

Side folds of amnion, 176, 187. Simia, 248, 251. Simiidae, 248, 250. Sinus, 249 sqq. Sinus terminalis, 170, 186. Sinus venosus, 180. Siredon, 41, 51, 52, 64, 77, 78, 81 sqq.. 130.

Sirenia, 208, 226, 255.

Size of cells, 100 ; of ovum, 35, 30 ;

of spermatozoon, 52. Skeleton, 165. Small-yolked, 36, 95. Soaps, 47. Sobotta, 127.

Somatic number of chromosomes, 23, 60, 66.

Somatoplcure, 166, 168, 177. Somites, 161, 162, sqq., 176. Sorex, 196, 207, 243, 246.

Sparrow, 142. Spec, Graf, 212. Spcnn-astor, 83. Sporm-path, 83-5, 89, 100-2. Sperm-sphere, 83. Spermatid, 24, 52 sqq., 59. Spermatozoon, 23, 24, 48 sqq. Spermocytcs, primary, 23, 59 ; secondary, 23, 24, 59, 67. Spermogonia, 23, 57, 69. Sphere of attraction, 54-7, 74, 78. Spinal cord, 156, 175. Spiracle, 157.

Splanchnocoel, 165, 167, 177. Splanchnopleure, 168, 177. Splitting of cell aggregates, 12, 13. Spongiosa, 230, 251. Squirrel, 203, 239. Stature, growth of, 20. Stomata, 187.

Stomodaeum, 154, 156, 169. Strahl, 228. Stroma, 26, 30.

Structure of germ-cells, 35 sqq.

- increase of, 10.

- of ovum, 14, 40, 41-43, 60, 95. Sturgeon, 36, 41, 52, 102, 127. Sturin, 52.

Sub-germinal cavity, 135, 149, 171. Sub-intestiual vein, 170. Sucker, 154. Sus, 195, 219. Symmetry of embryo, 90.

- of ovum, 40, 41-3, 90, 95.

- of segmentation, 99 sqq. Synaptene, 59, 65, 72. Syncytium, 171, 217, 230, 236, 250,

251, 254.

Tail, of spermatozoon, 48, 54-7, 83;

of tadpole, 155. Tail-fold of amnion, 176, 187, 210;

gut, 170. Tail-sleeve, 56.

Tcdpa, 31, 36, 195, 207, 243, 245. Tamandua, 227. Tangential division, 97, 103. Tarsius, 195, 201,209-11,218, 246-8,

255, 257. Teeth, 155.

Teleostei, 36, 37, 46, 49, 91, 103, 104,

125 sqq., 130, 150, 170. Telolecithal, 38. Tendon, 11.

Testis, origin of, 34 ; tubules of, 34, 57.

Tetraceros, 220. Thalamencephalon, 158. Theca, 26, 28, 30, 44. Thickness, alterations of, 12.


Thymus, 109, 182. Thyroid, 169, 181. Toad, 15, 51, 62, 129. Transverse division, 79. Triomjx, 138. Triton, 63, 86.

Trophoblast, 107, 143, 144, 192 sqq., 215 sqq.

Trophospongia, 234, 239, 243, 247. Tropidonotus, 49, 50. Trout, 27.

Truncus arteriosus, 180, 182. Tubes of Pfluger, 31. Tubules, of testis, 34, 57.

- of kidney, 166, 177. Tunica albuginea, 34. Twpaia, 195, 201, 207, 243, 246. Turner, 209.

Tympanic cavity, 182.

UmbilicEvl arteries, 188, 212.

- cord, 212, 214, 238, 247.

- veins, 188, 190, 212.

- vesicle, 108. Umbilicus, 187, 188, 196. Ungulates, 203, 204, 218 sqq., 255. Union of pronuclei, 85, 87.

Upper layer, 104, 135, 143, 149, 171. Urodela, 50, 51, 60 sqq., 102, 129, 130, 150.

Uterine epithelium, 219, 220, 226, 229, 230, 234, 239, 241, 244, 245, 248, 252.

- glands, 204, 220, 227, 229, 230, 232, 252

- milk, 221 227.

Vegetative pole, 40, 95. Vein, anterior abdominal, 190.

- cardinal, 167, 168, 179, 181.

- subintestinal, 170.

- umbilical, 188.

- vitelline, 168, 175, 179, 180, 183-6. Ventral aorta, 182.

- division of blastopore, 153, 154.

- lip of blastopore, 113 sqq.

- placenta, 248.

- roots, 157, 163, 164.

- stalk, 213, 246.

Ventricles of brain, 158 ; of heart, 180.

Vertebral column, length, 20.

- plate, 162, 176.

Vespertilio, 74, 145, 195, 208, 241, 242. VUli, 218, 219, 221 sqq., 226, 227, 229,

250, 251, 252. Vitelline arteries, 171, 180, 186.

- membrane, 45, 46.

- veins, 168, 175, 179, 180, 186. Vitreous body, 159, 161.

Water, absorption of, 15 ; in cgg whitc, 47 ; in yolk, 38. Weight, growth of, 20 ; of yolk, 40. Whito of egg, 46, 47. Will, 136, 137. Wilson, H. v., 105, 125 sqq.

- J. T.. 107, 143.

von Winiwarter, 64, 69. Wolffian tubules, 177. Woods, 27. Worm, 92.

Wrinkling of egg-surface, 95.

Yolk, 35, 36 sqq., 73, 74, 99, 100.

- loss of, 203. Yolk-blastoporc, 124.


Yolk-body, 40, 107 ; of Balbiani, 72, 74.

Yolk-eclls, 113 sqq., 128, 129, 150, 169.

Yolk-nuclei, 103-105, 122. Yolk-nuclcuB, 73, 93. Yolk-plug, 113, 114, 133, 135, 130, 142.

Yolkrsac, 108, 169, 170, 177, 180, 183 sqq., 192, 203 sqq., 238, 241, 244, 246.

Yolk-stalk, 27, 29, 170, 175, 180.

Zona pellueida, 45, 107.

Zona radiata, 46.

Zonary placenta, 227, 229, 256.