Explanation of Plate XXIII. 
Stereoscopic view of the egg of C. avis x 60. The pictures are 
placed sufficiently close together to combine ea.sily without a 
stereoscope. An injury to the adventitious coat, a portion being, 
as it were sliced up, is obvious ; probably occurring In journey of 
egg from South France. 
The lower figures ( x 60) are non-stereoscopic views of C. rubi ova. 
The adherence of the hairs of the plant (Ulex) to the eggs is to be 
noted. Photos by A. E. Tonge. 
