286 



Index 



Cerebellum : Frog, 37 ; Chick, 



224 

 Cerebral hemispheres : Frog, 



38 ; Chick, 154, 224 

 Chalazge . Chick, 91 

 Choroid coat : Chick, 181 

 Choroid fissure or slit : Frog, 



42 ; Chick, 179 

 Chromosome : 12 

 Cicatricula : (see Blastoderm) 

 Circulation, changes in, at meta- 

 morphosis : Frog, 63-69 

 Circulation, changes in, at time 

 of hatching : Chick, 259- 

 261 

 at end of second day : Chick, 



157-159 



of third day : Chick, 201-203 

 at end of third day : Chick, 



256-261 



Cleavage of the egg : (see Seg- 

 mentation of the egg) 

 Cleavage plane : Frog, 17 

 Cloaca : Frog, 45-48 ; Chick, 206 

 Ccelom : (see Body-cavity) 

 Concrescence : 24-25 

 Conjunctival epithelium: Chick, 



183 



Cornea : Chick, 183 

 Corneal corpuscles : Chick, 183 

 Cranial flexure : Frog 36 ; Chick, 



155, 167, 223 



Cranial nerves : Chick, 155, 226 

 Cranium : Frog, 75 ; Chick, 



265-267 

 Crura cerebri : Frog, 37 



Development, rate of : Frog, I ; 



Chick, 1 20 



Discoidal cleavage : 97 

 Dorsal aorta : Frog, 61 ; Chick, 



145 



Ductus artenosus : (see Ductus 



Botalli) 



Ductus Botalli : Chick, 246, 260 

 Ductus Cuvieri : (see Cuvierian 



vein) 



Ductus venosus : Chick, 199 



closure of : Chick, 261 

 Duodenum : Chick, 206 



Ear : Frog, 43 ; Chick, 184-187 

 Ectoderm or ectoblast : Frog, 



24 ; Chick, 104 

 organs from: Frog, 31; Chick, 



276-277 

 Egg : Frog, 6-10, 88 ; Chick, 



90-93 ; Starfish, 5-6 

 passage through oviduct : 



Chick, 94-95 

 Eighth day, development of : 



Chick, 281 



Eleventh day to hatching, devel- 

 opment of : Chick, 281-283 

 Embryo, change in position of : 



Chick, 165-167, 283 

 cloth model of: Chick, 114- 



119 

 curvature of body of : Chick, 



167 

 estimation of age of : Chick: 



134-135 



movements of : Chick, 283 

 rocking motion of : Chick, 169 

 Embryo-sac : Chick, 116, 165 

 Embryonic shield : Chick, 122 

 Entoderm or entoblast : Frog, 



26 ; Chick, 121 

 organs from: Frog, 31; Chick, 



. 2 . 77 

 Epididymis : Chick, 236 



Equal segmentation : 97 

 Ethmoidal plate : Chick, 267 

 Eustachian tube : Frog, 53 ; 



Chick, 193 



Eustachian valve : Chick, 259 

 Exoccipital : Frog, 77 

 External auditory meatus : Chick, 



193 

 External nares : Frog, 45; Chick, 



187 

 Eye : Frog, 41-43 ; Chick, 175- 



184 

 Eyelids : Chick, 183 



