142, REPORT OF THE CONFERENCE ON GENETICS. 
to distinguish between the effect of the heterozygote giving rise to forms 
that are not strictly intermediate, and the effect of the environment in 
causing somatic variations which are not heritable. 
The case taken is a limited one, but the results are sufficient to show 
that the theory of the pure gamete, as applied to compound characters, is 
much more flexible than would appear from Professor Pearson’s work, 
and can hardly be summarily dismissed as inapplicable to cases in which 
the coefficients of correlation approximate to 0°5. 
