Cuar. XV. ON THE DROSERACES. 367 
elsewhere, and somewhat more rapid in a longitudinal 
than in a transverse direction across the disc. These 
plants exhibit still more plainly their inferiority to 
animals in the absence of any reflex action, except in 
so far as the glands of Drosera, when excited from a 
distance, send back some influence which causes the 
contents of the cells to become aggregated down to the 
bases of the tentacles. But the greatest inferiority of 
all is the absence of a central organ, able to receive 
impressions from all points, to transmit their effects 
in any definite direction, te stors trem up and repro- 
duce them. 
