COLORED FIGURES i, 2. 3. CIRCULATION IN FISH, REPTILE, MAMMAL. 



In which is blood from heart all impure ? Mixed ? Both pure and rnpure ? 



FIG. 4. ANATOMY OF CARP. For description see Fig. 220, page 117. 



FIG. 5. --HARLEQUIN SXAKE (Elapse. 



THE HARMLESS 



CORAL SNAKE 



MIMICS THE 



DEADLY HARLEQUIN 



SNAKE. 



FIG. 6. CORAL SNAKE (Lampropeltis). 



