Mr. Weber: Three miles northwest of Blufftown there is a natural hybrid between the white and chinquapin oaks. There are some samples out on the table. We picked up some of the nuts and found them edible. No trace of any bitterness whatever. You come out of Blufftown on No. 30. About a half mile above the town you turn to the left and go about a mile or more. It is at the intersection of the Erie Quarry road. It has a wire fence around it.
Dr. Smith: How do you know it is a hybrid?
Mr. Weber: From Richard Leber. It was discovered by a man by the name of Williamson, and he suggested that the state acquire the land in order to preserve the tree.
Dr. Smith: It will be another source of carbo-hydrate food.
The President: Dr. Zimmerman is a specialist on chestnut blight, and particularly on inducing immunity.
INDUCED IMMUNITY TO CHESTNUT BLIGHT
Dr. G. A. Zimmerman, Piketown, Pa.
Several years ago I started out to get rid of the chestnut blight. On several occasions before this notable body I told of the successes and failures I had encountered, still believing that I was on the right road and insisting that an antigen would be absorbed in sufficient amount to stimulate immunity. Science has since vindicated that assertion and men are now injecting all sorts of chemicals, and even dyes to stain the grain of the wood.
I have been very cautious in the past and perhaps should be more so now, in view of the fact that only a comparatively few years have elapsed since I began my work on plants. Still, after having used vaccines on human beings and animals for twenty-one years, and observing that plant life reacts to an antigen in a similar manner, I am at least entitled to the same conclusions. This gives me an opportunity of knowing years in advance just what to expect.