NEGATIVE 1 HOTOTAXIS ETC. OF Littovillü. 



3 



At the spot d 5* 



At the spot e 1 



At the spot / 1 



Under the inverted dissecting-dish C 78 



Total .101 



The whole arrangement was left intact daring the night, but when 

 observed next morning (Aug. 7), no change was visible. In the course 

 of the same morning, one more got out of the glass-vessel B, and placed 

 itself at the spot g. 



Nearly all the individuals that got out of the glass-vessel B, did so 

 between the lines marked x and y, i. e. at the arc turned toward the 

 darkest corner of the room. Only three or four got out at the other 

 points (e and /). 



It is clear from the above table that by far the largest majority (90%) 

 of the individuals started toward the part that appeared darkest, and a 

 large portion of this (78 individuals) hid themselves under a shaded 

 cover. 



Experiment 3 (Aug G ) : — A number of individuals was placed in 

 a glass-vessel (similar to that marked B in Exp. 2). One side of this was 

 then tilted up by a number of glass-slides (Fig 2) so that the water in the 

 vessel was deepest toward the darker side of the room. The result was 

 that most of the individuals got over the edge at the darker arc in spite 

 of deeper water on that side. 



Fig. 2. 



After making several more expsriments of a more or less similar 

 nature and purpose as the above two, it occurred to me that this property 



* One of these got out of the glas>?-vessel B at the north-west point, crawled about on 

 the glass-plate toward the north and then finally came liere. 



