1) Observation has been made on the coloration of the compound eyes developed from implanted ocelli of the silkworm larva.
2) It has been ascertained that the colors of the eye and the egg are both determined by interaction of a hormone (W) and two chromogens (P, R) as follows :
WPR Black
WPr Red
WpR Pink wPR, WpR, wPr, wpr White
3) The intensity of color of the implanted eye differs by the sex of the host as the author reported previously. It is darker in the female host than in the male.
4) When more than two fragments develop in the same host, difference of coloration, if any, has no definite relation with the size of fragments, but perhaps depends upon the parts of the ocellus from which they had been derived.
