SMITHSONIAN CONTRIBUTIONS TO KNOWLEDGE. 



THE 



CLASSIFICATION OF INSECTS 



FROM 



EMBRYOLOGICAL DATA 



BY PROF. LOUIS AGASSIZ. 

 n 



[Presented to the American Association for the 'Advancement of Science, at Cambridge, August, 1849.] 

 [RECEIVED, MARCH 6, 1850.] 



VOL. II. 



. , ART. 6. 



