human
Nature is never brusque, although Jack-in-the-box phenomena are rare, the evidence, _e.g._ of Bateson and De Vries, as to the frequent occurrence of discontinuous variations appears conclusive. Such words as
gpt
and
human
express a truth, suggested by Mr Galton's phrase
gpt
that organisms may pass with seeming abruptness from one form of equilibrium to another. There is evidence that these sudden and discontinuous variations--
human
many of them are called--are often very heritable, that when they appear they come to stay; and it seems likely, especially from facts of breeding and cultivation, that these mutations, rather than the minute