el plants, 7 to 8 years old, different
varieties. These plants grow so immensely that it plainly shows, they
are growing at the expense of the fruit, not only that the quantity of
nuts gathered from a plant there is considerably less than of same sized
plants grown on ordinary farmland, but the quality also is very much
below. My best nuts are all grown on ordinary farmland and the greatest
quantity has always been obtained from the farm where only very little
fertilizing or manuring had been done. For the growing of young plants
for commercial purposes, for the trade, I should recommend liberal
manuring at all times. (Applause.)

QUESTION: Is the hazel a long lived tree?

MR. VOLLERTSEN: I have known trees for almost forty years that
are bearing good fruit year after year, although not always a good crop.
They don't seem to grow so rapidly at that age as when younger.

DR. MORRIS: Hazels seem to graft pretty well on each other. I
think the tree hazel is going to be our most successful stock for
grafting. However, I have grafted on the _Corylus avellana_. The tree
hazel does not put out any suckers.

QUESTION: Does the hazel find its way into the market
commercially?

MR. VOLLERTSEN: I would almost think so. I have had lots of
inquiries for them from storekeepers. It seems to me there are a great
many imported around here. Our American hazels are not so very good.
There may be here and there a fairly good one, but I have not found any
really good ones worth propagating. I think if we would do more
scientific work we could get very good nuts. There is no question that
they are perfectly hardy and will stand almost any climate.

MR. JONES: Some of your varieties are hybrids aren't they?

MR. VOLLERTSEN: They are all hybrids. I have a few of the real,
original _avellana_ type I think got there by accident.

PRESIDENT REED: I believe the next paper is one the secretary
has from Mr. A. H. Graves.

DISEASE RESISTANCE IN THE AMERICAN CHESTNUT[1]

ARTHUR H. GRAVES

(Read by the Secretary)

Your secretary, Mr. Bixby, has asked me to tell you about the native
chestnut trees in the vicinity of New York City which I have found to be
resistant to the destructive bark disease. I commenced the search for
such trees in the summer of 1918, at the suggestion of Dr. Haven
Metcalf, of the laboratory of Forest Pathology, Bureau of Plant
Industry. During the campaign in Pennsylvania against the bark disease,
scouts ha