3. In a considerable number of cases all the members of the same group of coppice trunks from an old stump show a similar degree of resistance. To attribute such a condition as due merely to chance, occurring as often as it does, would be placing a pretty large burden on chance; and since the coppice trunks are all off-shoots of the same plant, the condition is what one would expect were the resistant quality in inherent character. A correspondence of degree of resistance was also noted, in the inoculations made on branches, trunk, and basal shoots of the same individual tree. Experimental work is being carried on at Washington to test out the truth of this hypothesis, i. e. to see whether or not the disease resistance is really heritable. The work is being carried on in connection with the propagation of other resistant stock, Chinese, Japanese, etc.; and, as soon as the department is sure of the product, the results will be distributed to nut growers and others who are interested. In the meantime we can all help by being on the lookout for resistant native trees. I believe they will be found in many places besides the New York region. FOOTNOTES: [1] Illustration for this paper will be found opposite page 64. [2] Metcalf, Haven & Collins, J. Franklin. The Control of the Chestnut Bark Disease. Farmer's Bulletin--467, 1911, P. 5. [3] Anderson, P. J. & Rankin, W. H., Endothia canker of chestnut. Cornell Univ. Agri. Expt. Sta. Bulletin 347, 1914. EVENING SESSION SANITARIUM GYMNASIUM, at 8:00 P.M. President Reed in Chair