268 



INDEX 



Lewis, on muscle-plate in human embryo, 56 



development of columnse carneae, 215 



sub-cardinal veins, 227 



origin of lymphatics, 236 



origin of premuscular tissue in limb- 

 buds, 247 

 Ligament, round, 199 



suspensory, of ovary, 197 



broad, 197 



stylo-hyoid, 259 



falciform, 244 



coronary, 243 



Ligaments, articular, 250, 253, 254 

 Ligamentum arteriosum, 221 

 Ligula, 108 



Limb-buds, earliest signs of, 84 

 Limbs, segments of, 89 



rotation of, 89 



skeleton of, 254 



arteries of, 224 



veins of, 232 



nerves of, primary, ventral and dorsal 

 branches of, 126 



muscles of, 246 

 Limbus Vieussenii, 235 

 Linin, 3 

 Lips, development of, 151, 158 



rhombic, formation of, 108 

 Liquor amnii, 70 



folliculi, 191 

 Liver, rudiment of, 161, 173 



parenchyma, development of, 174 



veins of, 174, 226 



capsule of, 174 



activity of, as blood-forming organ in 

 early months, 174 



sinusoids of, 194, 224 

 Lobules of liver, 175 

 Lobus pyriformis, 118 



Spigelii, 175 

 Locus coeruleus, 108 



Loeb, on parthenogenesis in Echinus, 17 

 Lung, development of, 166 



rudiments of, in body-cavity, 239 



division of primitive, into lobes, 166 

 Luschka, on primitive jugular vein, 231 

 Lymphatic system, 235 

 Lymph-cells in thymus, source of, 172 



hearts in pig, Sabin, 236 



glands, 236 



cords, 236 

 Lyra, origin of, 123 



MACACUS NEMESTRINUS, blastomere stage 

 in, 25 



Mackay, on segmental arteries in limbs, 224 



Macula germinativa of Wagner, 10 



Magma reticularis, 35, 80 



Mall, on early human ovum, 81 

 inversion of germ-layers, 30 

 intestine, development of, 162 

 development of body-wall, 246 

 jugular veins, 231 

 vitelline arteries, 223 



Malleus, origin of, 257 



Malpighian corpuscles of spleen, 237 

 of Wolffian body, 178, 182 



Mandible, primitive, 257 



Mantle zone, development of, 95 



Manubrium sterni, origin of, 253 



Marmot, Wolffian duct in, Janosik, 178 

 Marshall, oblique vein of, 232 



vestigial fold of, 232 

 Maturation of the oocyte, 10, 11 



nuclear phenomena during, 17 

 Maurer, on gill-pouches in higher vertebrates, 

 158 



lateral thyroid in Echidna, 169 



on thymus, 172 



fate of outer lamella of myotome, 56 

 McClure, on origin of lymph- vessels, 236 

 Meatus, external auditory, 149 

 Meckel's cartilage, 150, 257, 258 



ganglion, 133 



Medullary nerve-sheath, appearance of, 103 

 Membrana limitans of spinal cord, 96 



nictitans, 144 



reunions, 246 



tectoria, 148 



tympani, 149, 150 

 Membrane, infrachoroideal, 119 



pleuro-pericardial, 241 



peritoneo-pericardial, 242 



mucous, of uterus and vagina, 196 



hyaloid, 143 



pupillary, 143 



cloacal, 201 

 Membranes, foetal, 65, 70, 71 



of spinal cord, 105, 250 

 Mendel, Law of Heredity of, 23 

 Menstrual decidua, 67, 68 

 Meroblastic segmentation, 27 

 Merogony in Echinus, 17 

 Mesenchyme, 56, 58, 59, 62 



origin of lymphatics in, 235 



of limb-buds, 246 



theory, Hertwig, 58 

 Mesencephalon, or mid-brain, 106, 110 



connection with optic stalks, 141 



connection of Gasserian ganglion with, 133 

 Mesentery, caval, 227, 242 



of genital gland, 189, 197 



primitive intestinal, 161 



ventral, 244 



dorsal, 244 

 Mesocardium, dorsal, 62, 206 



lateral, 208, 240 



ventral, absence of, 237 

 Mesocolon, 244 

 Mesoderm, formation of, 32 



parietal and visceral layers of, 33 



precocious formation of, in Primates, 34 



early, origin of, in man, 34 



early, origin of, in Tarsius, 34 



early, origin of, in Semnopithecus, 34 



embryonic rudiment imbedded in, in 

 higher Primates, 34 



as origin of magma reticularis, 35 



from entodermal plate, 35 



from primitive streak, 35 



development of, by coelomic pouches, 

 Hertwig, 36 



from entodermal ring, Hubrecht, 35 



in Amphioxus and Reptilia, 46 



lateral, history of, 49 



paraxial, 49 



intermediate, 51 



two orders of, 58 



anterior, of Lepidosiren, Agar, 249 



as origin of sympathetic ganglion- cells, 133 



