EMBRYO BUTTERFLIES. 



135 



Embryo butterflies (Pnvfia Bras-virce), as they appear in the 

 bodies of caterpilia s. The winjrs, antenna;, and tiunks in the 

 figures are sprea.l out to show ihem. 



By similar dissections, Malpighi both actually dis- 

 covered the moth in the body of a silk worm, and also 

 the eggs of it;^ and R aumur made a similar disco- 

 very in the caterpillar of the gypsey moth (Ilypogymna 

 dispar).'\ 



''"''inrnm^ 



Female of the perlect cabbage butterfly (Pontia brassicce.) 



In order to harden the parts of the incipient butterfly 

 that are soft, Swammerdam immersed the caterpillar 

 in a phial tilled with equal parts of vinegar and spirit 

 of wine for sixteen hours, when he found it would 



* Malpighi de Bombyce, 29. t Reaumur, Mem. i, 359. 



