340 DR. H. LYSTER JAMESON ON 
the pearls in Dr. Kelaart’s specimens, deseribed above, i.e. had mo 
obvious nuclei, but simply central cavities containing either a few 
irregular strands of conchyolin-like substance or obscure granules. 
Two out of these twelve were sectioned. One, Preparation 
Text-fig. 41. 

lle ac 
B. 
A. Centre of a Ceylon pearl given to me by Mr. E. Hopkins. Decalcified and 
examined whole in oil of cloves. Examined thus the body might be taken 
for the remains of a Platyhelminthian parasite. 
B. The same in section. The body is seen to be a “ pseudo-nucleus” consisting in 
great part of amorphous substance, am., along with which is some granular 
matter, g7. In the centre are some strange spore-like bodies, w, of doubtful 
origin (Preparation LXXXV 1). X 400. 
[82 
