340 



DR. H. LYSTER JAMESON ON 



' the pearls in Dr. Kelaavt's specimens, described nbove, i. e. had no 

 obvious nuclei, but simply central cavities containing either a few 

 irregular strands of conchyolin-like substance or obsciu'e granules. 

 Two out of these twelve were sectioned. One, Preparation 



Text-fie'. 41. 



^^ 



OTTt. 



A. Centre of a Ceylon peavl 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 winch is some gvanular 

 matter, gr. In the centre are some strange spore-like bodies, .r, of doubttul 

 origin (Preparation LXXXV l). X 400. 



