Abstract
In a previous paper (Stewart, 1926), we have seen that the mutabile form of B. neapolitanus Emmerich is a heterozygote with a Mendelian formula IiFF, in. which F represents a unit character for the fermentation of a particular sugar, e.g. lactose, I represents a factor for the inhibition of F, and i represents the absence of I in a pair of allelomorphs. Similarly paracolon has a formula IIFF.

This publication has 2 references indexed in Scilit: