William A. Hilton 



471 



10 



Fig. 1. Ruflaed grouse 

 Fig. 2. Bob-white 

 Fig. 8. Humming bird 

 Fig. 4. Domestic duck 

 32 



Fig. 5. Old cat 

 Fig. 6. Young cat 

 Fig. 7. Bat 

 Fig. 8. Muskrat 



IB 





Fig. 9. Mouse 



Fig. 10. Shrew mole 



Fig. 11. Porcupine 



Fig. 13. Homo at term 



