ON 



A TRUE PARTHENOGENESIS 



IN MOTHS AND BEES; 



A CONTRIBUTION TO 



THE HISTORY OF REPRODUCTION IN ANIMALS. 



BY 



GAEL THEODOR ERNST VON SIEBOLD, 



Professor of Zoology and Comparative Anatomy in the University of Munich, Knight 



of the Order of Maximilian, Director of the Zoological and Zootomical 



Cabinet, and Conservator of the Zoological Institute in Munich. 



TRANSLATED BY 

 WILLIAM S. DALLAS, F.L.S. &c. 



a 



LONDON: 

 JOHN VAN VOORST, PATERNOSTER ROW. 



MDCCCLVII. 





II 



$>*& dK 



