' " '" - / 



OBSERVATIONS 



ON THE 



EMBRYOLOGY 



OF 



INSECTS AND ARACHNIDS 



BY 

 ADAM TODI) BRUCE, 



/;. I. PBJ.VI ETON <;,I.I.KI;I: i-i; ;//. /'.. Joir\x H;-A-;.VS rxift:i!*[TV. 



A MEMORIAL VOLUME. 



BALTIMOKH : 



Pulilication Agency of Johns Hopkins University, 

 1887. 



