MODIFICATION' OF RESPONSE IX AMCEBA. 



57 



2:03 2.Q3L 2:04 2:05" 



1 



tf "9-40*9 



/a 



10.2 



IO:58 U.oo n. 01 



ICOS" M:06 M:07 



H:i3 i IMS' M.io l|:20 H-' 



Vi:3 7 " It 3.? I 



1 1 f C 



IK44 l'4-r 



U..C7 



FIG. i. A series of diagrammatic illustrating the U ha\ i. i . i Amoeba E for twenty-seven 



tri.ils. Thr straight lines of equal Icii.uth i< nd of li^lit. I K.- ..utlines of the amoeba de- 



si-rilit- it- j...-ition in relation to the light at the time given below in each individual sketch. The 

 arro\v< shcu tin- din-ction of protoplasmic -tn-aming. 



