POTASH FROM KELP. 
Fic. 2.—A.— Spores stained in methylin blue. Drawn with a camera lucida, using a No. 
10 eyepiece and a 1-mm. oil-immersion lens, B to J.—Sporelings in various stages of 
development. # and @ stained in methylin blue and drawn with a camera lucida, 
using a No. 10 eyepiece and a 4-mm. dry objective. Remaining drawings reconstructed 
from sketches of living specimens. a=proembryo; b=embryo ; r—=rootlets or rhizoids. 
A, more highly magnified. 
