>94 APPENDIX 



Liver of the alligator. 

 Liver of pig, Mallory stained. 

 Liver of the cat and woodchiick. 

 Liver of the rabbit with injected bile capillaries. 

 Gall-bladder of an alligator. 

 Excretory system: 



Kidney of a fish (the black bass), and ureter. 



Kidney and testis of Necturus, Zenker fixed and IVIallory 



stained. 

 Kidney of a toad, and ureter, also adrenal. 

 Kidney of the water snake (Natrix), and ureter. 

 Kidney of a hawk. 

 Kidney of a fetal cat showing developing nietanephros and 



remnants of mesonephros. 

 Kidney of a cat and rat. 

 Ureter of an alligator. 

 Ureter of a dog, cross-section. 

 Bladder of a frog. 

 Bladder of a turtle. 

 Bladder of a dog, collapsed condition. 

 Bladder of a mouse, collapsed and distended conditions. 

 Urethra of female woodchuck, cross-section. 

 Female reprodiictiw system: 



Ovary of a fish (the black bass), cross-section. 



Ovary of Amblystoma and Necturus. 



Ovary of the water snake (Xatrix). 



Ovary of immature dog and cat. 



Ovary of adult cat, rabbit, and chipmunk, showing corpora 



lutea, etc. 

 0\iduct of a skate (an elasmobranch). 

 Oviduct of the frog, cross-sections of se\eral levels. 

 Oviduct of a turtle. 

 Oviduct of a cat, pig, and rabbit. 

 Uterus of a rabbit, resting condition. 

 Litems of a cat in heat. 

 Vagina of a guinea-pig, cross-section. 

 Fetus and attached placenta of the mouse. 

 Placenta of a rat. 

 Mate reproihirtlre system: 



Testis of Amblyostoma, cross-sections. 

 Testis of a toad. 



