PLATE 9 



EXPLANATION OF FIGURES 



69 Longitudinal section through the thiinl ganglion, which contains a number 

 of secondary masses. X 636. 



70 A portion of the brain ganglion cont.iining a fertilized egg in maturation. 

 X 636. 



71 Longitudinal section of the fourth ganglion containing a large asexual 

 embryo, several secondary masses, and a few tertiary masses. X 636. 



72 Longitudinal section of an advanced polygerm removed from a 12 mm. 

 caterpillar. The polygerm, Vi-hich is surrounded by adipose tissue of the host, 

 contains many tertiary masses and also two advanced asexual embryos. Some of 

 the masses are dividing (at A'). X 260. 



62 



