Bf pirminion / thi Ntw York Zoological Sociitf 



AFRICAN PUFF-ADDER 



Horses die within a fe-w hours of being bitten by this serpent 



Bj ftrmisiion of iht New Ztrk Z 



DIAMOND-BACK RATTLE-SNAKE 



One or more joints are added to the " rattle" each successive yea 



595 



