59 
Oct. 19. Castanea dentata from Prof. H. M. Jennison, EIk- 
mont, Tenn. 
Oct. 24. C. crenata from Mr. Renvil 
— 
e 5. Smith. Oyster Bay, 
Dec. 8 C. dentata through Mr. J. Stuart Thomson, from South 
Dakota. 
— 
Mutation in Nature.—There is always the chance that disease- 
resistant chestnuts may be developing by mutation somewhere in 
our eastern forests. In our search of the New York region, in 
1918, for an immune or very resistant native chestnut, we found 
that individuals vary greatly as regards their susceptibility to the 
disease. Evidently it holds with the species Castanea dentata, as 
with other plant species, that a great variety of strains or races 
exists within the species. With this consideration in mind, we 
are making every effort to plant all nuts which are sent to us from 
fruiting sprouts. 
Further General Cooperation Needed—I\f any who read this 
report know of chestnut trees which are resisting the blight, we 
would much appreciate a post card telling us where to find them. 
And if nuts of wild trees are gathered in the fall, we would be 
glad to receive some. But the nuts should not be allowed to be- 
come dry. A few days in a heated room are apt to be fatal. 
They should be wrapped in moist cotton, paper napkins, or moss, 
immediately after gathering, and mailed to the Brooklyn Botanic 
Garden. All such nuts will be carefully planted by us, and the 
resulting trees labelled with the name of the finder and the locality. 
We already have 49 such trees, from nuts coming from locations 
ranging from Asheville, North Carolina, to Portland, Maine. 
Further, we shall soon need about 5 acres of good arable land 
within a reasonable distance—perhaps not more than 50 miles—of 
3rooklyn, N. Y., or of Hamden, Conn. We shall need this for 
planting new hybrids. The more hybrids we grow the better are 
the chances of ultimate success. We would be glad to hear from 
anyone who has land fulfilling these requirements. 
Finally, our greatest need at present is a regular fund on which 
we can depend for the field expenses of this work from year to 
