150 THE STRUCTURE OF THE FOWL 



Central canal of spinal cord, 90 



Cerato-branchial bone, 23 



Cerebellum, 92 



Cerebral hemispheres, 94 



Cerebral nerves, 95 



Cervical air-sacs, 62 



Cervical vertebrae, 11 



Chalazae, 73 



Chalaziferous layer of albumen, 



73 

 Chiasma, 93 

 Chorda; tendinea;, 81 

 Chorion, 125 

 Choroid, 99 

 CiUary body, 99 

 Clavicle, 26 

 Clavicular air-sac, 62 

 Cloaca, 53 



Coccygeal vertebrae, 13 

 Cochlea, 102 

 Cochlear duct, 102 

 Colon, 50 

 Columella, 101 



Conformation of embryo, 143 

 Conjunctiva, 98 

 Contour feathers, 107 

 Coprodfeum, 53 

 Coracoid, 26 

 Cornea, 98 

 Corpus striatum, 94 

 Covert feathers, 107 

 Cranial bones, 17 

 Cranial larynx, 57 

 Cricoid cartilage, 58 

 Crop, 45 

 , Crystalline lens, 100 



Deferent duct, 66 

 Dentary bone, 21 

 Development — 



of adrenals, 88 



of air-sacs, 62 



of alimentary tract, 132 



of circulatory system, 138 



of ear, 131 



of embryonic membranes, 125 



of eye, 130 



of feathers, 108 



of intestines, 133 



of kidneys, 134 



of liver, 134 



of nervous system, 129 



Development (conid.) — 



of pancreas, 134 



of pharynx, 133 



of reproductive organs, 136 



of respiratory tract, 134 



of spermatozoa, 67 



of stomach, 133 

 Digits, 29, 34 

 Ducts of liver, 54 

 Ducts of pancreas, 55 

 Ducts of the testis, 70 

 Ductless glands, 86 

 Ductus arteriosus, 142 

 Duodenum, 50 

 Dura mater, 89 



Ear, 101 

 Ectoderm, 116 

 Egg, 71 



Egg-follicles, 70 

 Embryonic circulation, 141 

 Embryonic membranes, 124 

 Endolymphatic duct, 102 

 Entoderm, 116 

 Entoglossal bone, 23 

 Epididymis, 66 

 Epistropheus, 12 

 Ethmoid bone, 19 

 Eustachian tube, 24, 101 

 External tj'mpaniform mem- 

 brane, 59 

 Eye, 97 

 Eyeball, 98 

 Eyelids, 97 



Fabricius, bursa of, 53 



Facial bones, 19 



False wing, 107 



Feathers, 105 



Femur, 32 



Fenestra cochleae, 24 



Fenestra vestibuli, 24 



Fertilisation, 112 



Fibula, 33 



Filoplumes, 107 



First segmentation nucleus, 113 



Flocculus, 93 



Follicles of ovary, 70 



Foramen magnum, 17, 23 



Foramen ovale, 139 



Foramen triosseum, 26 



Foramina of the skull, 23 



