500 
Arthur . — The Movement of 
themselves began to show drops, which by 6 o’clock became 
plentiful. In the meantime the proximal half had increased 
and enlarged its drops, but no branches had appeared. The 
protoplasm had streamed into the portion under observation 
almost continuously for a time, then at intervals it stood still, 
the intervals of rest becoming longer and longer, but no reverse 
of b 
4 : oo 4<:2® 
e d 
4:50 
, f 
, 5 l 30 
Woodcut ii (Fig. 6). 
Changes observed in the distal part of a tree hypha during an hour and a half. 
Drops of water successively appeared on the surface, and through some of them 
branches eventually protruded : a , appearance at 4 p.m.; b , at 4.20; c , at 4.35; 
d, at 4.50 ; e, at 5 ; /, at 5.30. 
movement occurred. Observations were continued until 7 p.m., 
three hours in all. During this time the branches grew at an 
apparently uniform rate, and without noticeable synchronous 
relation to the protoplasmic movements. The next morning 
observations were resumed, and from 10.30 to 11 a.m. streaming 
