METAMORPHOSIS OF AMPHIBIAN ORGANS 



259 



experiment 26 the graft developed all other characteristics at 

 the same rate as its host; in experiment 25 the graft was a spot- 

 less pice of skin and cannot be compared further with the host 



with regard to spot development, but its background changed 

 simultaneously with the host. 



In experiments 31 and 32 the network as well as the spots in 

 both grafts developed simultaneously with their respective hosts, 



THE JOURNAL OF EXPERIMENTAL ZOOLOGY, VOL. 24, NO. 2 



