264 



EDUARD ITHLENHUTH 



and graft of 27, twenty-eight days later than in host and graft 

 of 28. Concerning the development of the spots we find that 



July 31 



August 28 



August 30 



August 30 

 September 5 

 September 9 



September 14 



October 7 



October 12 

 December 18 



EXPERIMENT 27 



On the host a greenish network 

 has started to develop; on 

 graft a faint green network 

 also is forming 



The network of the host has 

 separated into bright yellow 

 spots and from the network 

 of the graft patches of yel- 

 low pigment dots have de- 

 veloped in the center of the 

 graft, which are less bright 

 than the spots of the host 



Land-condition 



Host's spots still dim yellow, 



graft's spots disappeared 

 Animal escaped 



EXPERIMENT 28 



On host and graft a grayish 

 green network has started to 

 form 



Land-condition 



In host there are no spots, only 

 a network like greenish pig- 

 mentation while in the graft 

 only a part of the network 

 is left and in the center 2 

 distinct yellow spots have 

 formed 



In host the network is still 

 present but several yellow 

 spots around the skin-graft 

 have finally developed 



Host's body almost without 

 spots, since only 3 light yel- 

 low spots near the shoulder 

 of right side and a few around 

 the grafted skin of the left 

 side have developed 



the graft of 27 finally became spotless, but developed during 

 metamorphosis a few temporary spots simultaneously with the 

 host. In experiment 28 we have before us a case which is similar 



