stirp

The continuity of germ plasm (stirp of Galton), like Darwins selection, is a fact, not a theory.

For figures or descriptions of four-leaved shamrocks the reader is referred to Lobel, 'Stirp.

Dogging at a theory of heredity which will reconcile Darwin's gemmules, Weismann's germ-plasm, and Galton's stirp.