Reactions of Isopods 



443 



TABLE I— Continued 



October -50, 1905. Temperature of Water, 10.8° C. 

 Bristle No. 2 (A human hair) 



October 30, 1905. Temperature of Water n.2° C. 

 Bristle No. ■? (A small camel's Iiair) 



' A touch, however slight, produced a vigorous movement in nearly every case. 



