EXPLANATION TO PLATES. 
PLATE I. 
SILK-WORMS AFFECTED BY PEBRINE AND FLACCIDITY (AFTER PASTEUR). 
A, B, C, D, Silk- worms affected with pébrine, showing the spots of the disease. On 
the eighth joint of the worm A will be seen a wound which is distinguishable by its 
clear-cut edges. 
KE, F, G, worms, after death from flaccidity. G shows the worm just after death, 
Still retaining all of its outward perfection of form. At F the worm has begun to 
shrivel, while at E the blackening caused by putrefaction is shown. 
PLATE II. 
PEBRINE CORPUSCLES OF SILK-WORM MOTH HIGHLY MAGNIFIED (AFTER PASTEUR). 
(The white ovoid bodies are these corpuscles. ) 
