l.;cz 



LIBRARY 

 MMSdARQ 



ON THE 



ALTERNATION OF GENERATIONS; 



OB, 



THE PROPAGATION AND DEVELOPMENT OP ANIMALS 

 THROUGH ALTERNATE GENERATIONS : 



A PECULIAR FORM OP FOSTERING THE YOUNG IN THE LOWER CLASSES OF ANIMALS. 



JOH. JAPETUS SM. STEENSTHUP, 



LECTURER IN THE ACADEMY OF SÖRO. 



TRANSLATED FROM 



THE GEKMAN VERSION OF C. H. LORENZEN, 



BY 



GEORGE BUSK. 



LONDON : 

 PRINTED FOR THE RAY SOCIETY. 



MDCCCXLV. 



