270 



Miss I. B. J. Sollas on a new 



statoblasts had germinated, and after that quite a number of 

 otliers did so. When germination occurs, or, rather, some 



Fiff. 4. 



A youn^ individual (B) shortl}' after germination in four positions, 

 Nov. 5-7, 1907. e, ectocjst ; /, thickened epithelium or foot. 



Fiff. 5. 



Fitr. 6. 



bad 



Y\v. 5. — A young individual which emerg-ed from its valves. 

 Pig, 6. — Individual B : appearance of bud when first noticed on Nov. 25, 

 1907. Zeiss obj. A, eyepiece 3. 



time before that, the process splits lengthwise into two, one 

 at each end of each valve, and each half then carries a single 



