THE MUTATED GENE 



Fig. 1. — 1-8, eight different phenotypes produced by temperature action upon 

 the pupae of Vanessa iirtia, ; '.i, the usual type; 13, 14, the geographic race 

 ichnusa; 10, ichnusa-like type produced as phenocopy. ( f J h<iln(jrn/ili Fischer, 

 from Goldschmidt, Einf. i. il. Yvrerbywiss., 5th ed., 192i», Fig. 17 t. 



