Observations on Brefeldia maxima, Rost. 227 

Fig. 1.—Showing the comparatively 
large channels in transverse section. 
These channels probably facilitate the 
passage downwards of the excess of 
water passed out during condensation 
of the protoplasm previous to the nuclear 
division which precedes spore formation. 

Fig. 3.—A small portion occupying 
the zone indicated at Bin fig. 1. The 
nuclei are large, but division has not 
actually begun, and there is scarcely a 
sign of the breaking up of the proto- 
plasm into small masses of two-spore 
“Capacity. 
“1916 July 1. 

Fig. 2.—Vertical section, show- 
ing channels which probably 
facilitate the passing out down- 
wards of excess water. 

Fig. 4.—Nuclei in process of divi- 
sion a short time previous to stage 
shown in Fig. 5. 
