Index 



335 



Infundibulum : Frog, 37 



Inner cell-mass, 290 



I nterauricular septum: Chick, 



270 

 Intermediate cell-mass : 



Chick, 216 

 Interorbital septum: Chick, 



267 

 Inter ventricular septum: 



Chick, 269 

 Invagination : Frog, 22 ; Chick, 



130-131 

 Iris: Chick, 182 



Jelly of Wharton, 309 



Karyokineses, 18 

 Kidney, permanent: Chick, 

 216-217, 235-236 



Labia majora, 318 

 Labia minora, 318 

 Labyrinths of ear: Chick, 185 

 Lachrymal gland and duct: 



Chick, 183-184 

 Larynx: Frog, 50 

 Lateral plate: Chick, 134 

 Lens capsule: Chick, 178 

 Lens vesicle : Frog, 43 ; Chick, 



176 

 Ligamenta suspensoria: 



Chick, 230 

 Limbs: Frog, 4; Chick, 224, 



264 



rotation of: Chick, 264 

 Liver: Frog, 48; Chick, 209- 



211 

 blood supply of : Chick, 253- 



2 54 



Lower layer cells: Chick, 105 

 Lungs: Frog, 49; Chick, 207- 



209 



Male pronucleus, 16 

 Malpighian bodies: Frog, 83; 

 Chick, 217 



Mammary glands, develop- 

 ment of, 321322 

 Mandible: Chick, 195 

 Mandibular arch: Frog, 51; 



Chick, 191 

 Manus: Chick, 264 

 Maternal placenta, 300, 307, 



309-312 



Maturation of egg: Frog, 10 

 16; Chick, 9495; Mam- 

 mal, 289 

 Maturation, theories of, n- 



16 



Maxillary process: Chick, 195 

 Meatus venosus: Chick, 199, 



251-252 



Medulla: Frog, 37; Chick, 224 

 Medullary, canal: Frog, 34; 



Chick, 130 



folds: Frog, 32; Chick, 129 

 groove: Frog, 32; Chick, 



129 



plate: Frog, 32; Chick, 129 

 Megacephalic embryos, 328 

 Membrane bones: Chick, 267 

 Membranous vertebral col- 

 umn; Chick, 227 

 Menstruation (human), 322 

 Meroblastic cleavage : (see 



Partial cleavage) 

 Mesenteron: Frog, 25, 45 

 Mesentery: Chick, 204 

 Mesoblast or mesoderm : Frog, 

 28-29; Chick, 122; Mam- 

 mal, 295 



changes in: Chick, 212-216 

 cleavage of: Frog, 30; 



Chick, 132 

 organs from: Frog, 31; 



Chick, 277 

 origin of: Frog, 2829; 



Chick, 125 

 Mesoblastic somites : Frog, 70 ; 



Chick, 134 



number of, in relation to 

 age: Chick, 134-135 



