Page 189

THE SUM OF HIS WORK
of the present work is already familiar, illustrate
another aspect of heredity no less interesting; but
at the moment we are concerned with the fertile
hybrids.
And these, it may be added, include all the
fifty-odd plants described in the catalog, with the
three exceptions just noted.
Without entering into specific details, we may
briefly note that the new hybrid plums here listed,
and for the most part pictorially shown, were ten
in number, involving the racial strains of species
from Japan and China, from Europe, and from
various regions of America.
The hybrids among flowers were also given
full representation, ten pages of the catalog being
devoted to them, and the new varieties named
and described including roses, callas, lilies, glad-
ioli, a number of forms of clematis, and a new
poppy. New types of hybrid seedling potatoes
were also listed, and a new form of crossbred
tomato, called the Combination.
The extraordinary Aerial potatoes grown on
potato vines grafted on the roots of the tomato;
and the no less extraordinary potatoes grown on
a stock having an engrafted tomato top are also
shown, although merely as curiosities and not as
commercial products.
To complete the summary of the evidence that
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