“…The phenomenon here studied clearly indicates that between induction mechanisms of various regional types a systematic relationship exists, and that the physical entities govering the mechanism can be altered by heat, alcohol, and formalin, and hence might be of proteinic nature. The latter suggestion is in line with data obtained in more direct approach (YAMADA and TAKATA, 1955;TIEDE-M A N N and TIEDEMANN, 1956;HAYASHI, 1958;YAMADA, 1958a, b, c ) .…”