INDEX OF TYPES 



Amoeba. Structure, 354 ; method of feeding, 354 ; contractile vesicle, 354 ; 

 multiplication, 354. 



Cockroach. External characters, 257 ; apertures, 263 ; appendages, of the 

 head, 258 ; of the thorax, 261 ; of the abdomen, 262 ; alimentary 

 system, 264 ; circulatory system, 267 ; respiratory system, 268 ; 

 nervous system, 269 ; special senses, 271 ; reproductive system, 273 ; 

 development, 275. 



Cod. External characters, 9; apertures, 9; fins, 9; alimentary system, 

 32 ; respiratory system, 10 ; circulatory system, 33, 196 ; urinogenital 

 (excretory and reproductive) system, 35 ; nervous system, 35. 



Crayfish. External characters, 232 ; apertures, 240 ; appendages, 235 ; 

 alimentary system, 242 ; respiratory system, 238 ; circulatory system, 

 245 ; excretory system, 247 ; reproductive system, 252 ; nervous sys- 

 tem, 247 ; special senses, 249 ; development, 254. 



Earthworm. External characters, 278; apertures, 278-9; setse, 279; 

 body walls and septa, 282 ; alimentary system, 282 ; respiration, 286 ; 

 circulatory system, 284 ; excretory system, 284 ; reproductive system, 

 286 ; nervous system, 286 ; senses, 286 ; development, 289. 



Fowl. Skull, 149; vertebral column, 165; ribs and sternum, 167; 

 pectoral arch, 170 ; fore limb, 171 ; pelvic arch, 173 ; hind limb, 175 ; 

 segmentation of the ovum, 95 ; egg membranes, 96 ; establishment of 

 the germinal layers, 99 ; formation of the neural tube, 102 ; folding 

 off of the embryo, 104 ; development of heart, cerebral vesicles, and 

 mesoblastic somites, 105 ; embryonic appendages, 108 ; amnion, 108 ; 

 allantois, 111 ; hatching, 113; gizzard and proventriculus, 178. 



Frog. External characters, 1 ; apertures, 8 ; limbs, 6 ; alimentary system, 

 22 ; respiratory system, 24 ; circulatory system, 25, 198 ; urinogenital 

 (excretory and reproductive) system, 28 ; nervous system, 29 ; hind- 

 brain, 215 ; mid-brain, 217 ; fore-brain, 218 ; cranial nerves, 221, 223 ; 

 spinal nerves, 224 ; sympathetic system, 225 ; histology of blood, 64 ; 

 of epithelium, 67 ; of connective tissue, 68 ; of cartilage, 68; of bone, 

 70 ; of muscle, 72 ; of nerve, 74 ; of retina, 77 ; of stomach, 78 ; of 

 liver, 80 ; of lung, 81 ; of kidney, 82 ; of skin, 82 ; development, 1 ; 

 segmentation of the ovum, 94 ; egg membranes, 96 ; establishment of 

 the germinal layers, 97 ; formation of the neural tube, 102. 



