degree of moisture. The enzymes go to work the minute the cells of the
scion have a full charge of water despite low temperature unless it is
actually below freezing. Scions of another kind are the ones that I cut
off from one tree and put on the next tree the same hour or day. That
has only been possible by this method that I now employ. Almost any time
in the summer we can do that without keeping the scions in storage at
all. I gave some of them a resting period experimentally for a day or
two but to no advantage.

PROF. CLOSE: Don't you have to be pretty careful with the melted
paraffin so as not to injure the tissue?

DR. MORRIS: Yes we need special apparatus. I took a lantern, cut out the
top and sunk a spun cup down in the lantern. On a cold day I turn the
alcohol flame higher than in a warm day. I have been trying to have this
lantern made so that it could be got on the market. There is nothing
else to my knowledge that will allow the grafter to regulate the
temperature of melted wax according to the weather. I am going to get it
manufactured so you can each have one.

MR. BIXBY: There is a series of paraffines pure paraffines which are
known only in chemical laboratories and also a number which can be
obtained without much difficulty. The common parowax I think is the
grade that is known in the trade as 120. That is it melts at 120 degrees
F. but paraffin can be obtained without much difficulty that melts at
125 deg., 128 deg. and 130 deg., so if the parowax is too soft for Mr. Bechtel's
district I am sure he can get something that will be all right. He
might have to send to New York to get it but it is readily obtained
there.

MR. BECHTEL: I have used bees wax and find that that melts at a higher
temperature.

DR. MORRIS: I want complete transparency.

MR. FOSTER: Would it be out of order for a beginner to ask what type of
grafting Dr. Morris uses in his work on these trees.

DR. MORRIS: I think that somebody who was not a beginner might ask that
quite as well. I have tried almost all the methods employed by the
experts and have gotten down to very simple principles. If I am going to
get fifty, sixty, eighty or ninety per cent of catches in hickory as we
sometimes do I have to use methods that are very simple. For limbs that
are small not larger than one's finger the plain cleft graft is good
enough and I like as far as possible to choose a branch that is about
the diameter of the scion. If the limb i