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 tivation and, careful selection have produced a number of forms with variously shaped thin shells, which are propagated by grafting and budding." (Silva, Vol. VII, p. 115.)

We now know how to breed plants, In the short space of a few years we can surpass the results of centurics of chance breeding. The plant kingdom has become almost as clay in the hands of the potter. Where we now have one good crop plant, we may some day have five or ten. We need to start in earnest to apply some of our science to producing genius trees—trees that are to other trees as human geniuses are to other men.

Genius trees produced either by chance or design can be propagated a million or ten million times as was done with the one chance navel orange tree.

We need a new profession, that of the botanical engineer, which will utilize the vital forees of plants to create new mechanisms (crop yielding trees) as electrical and mechanical