ut in shape which may account for the fact that _J. mandshurica_
is sometimes called the Oriental butternut.

The nuts germinate well and make trees quickly. In one case, I had
mature nuts five years after planting the seed. This particular tree was
unusually vigorous having leaves 36 inches long and 23 inches wide.

In my experience, _J. regia_ and _J. mandshurica_ do not hybridize
easily if at all, at least with the individuals and under the conditions
with which I have been working. After several attempts I now have two
progenies of reciprocal crosses of which a few seedlings seem to show
hybridity in the vegetative parts. However, there is such a range of
characters in the herbarium specimens labelled _J. mandshurica_ that
there will be a doubt in my mind until I see the mature trees, or it may
be possible that some of the herbarium specimens may have been collected
from naturally occurring hybrids, as the two species overlap in their
distribution in Manchuria. If the best vegetative and fruiting
characters from these two species can be combined the result should be
good for our northern sections.

My Thirty Years Experience With Nut Trees

CARL WESCHCKE, _St. Paul, Minn._

From time to time I have submitted articles for our annual report, as
well as other publications, which had to do more or less specifically
with certain species of nut trees, but since there are so many species,
and since most nut growers are interested in at least two or more, it
might be well to bring the story up to date of how a nut orchard might
be viewed or evaluated after twenty years.

Thirty years ago we did not have knowledge which has been gained by the
experimenters in the nut growing industry in the interim. Therefore no
one could foresee what the future would be. We hopeful ones of that era
planted trees and experimented with seeds from all over the world
because we thought nut trees deserved a place not only in the orchard
but in the dietary needs of the human being as well. Many of the wisest
and most respected experimenters of this era have passed beyond this
life; however, their lives were made much more interesting because of
their horticultural activities.

Here in the midwest in the 45th parallel we have established probably
what would be considered the practical northern limits of nut tree
cultivation. When I purchased trees it was by the hundreds, and
sometimes thousands, because I knew from reading Luther Bu