64 
gust, and for a large part of June and September. The cost of a 
sprayer, spray materials, labels, cloth and paper bags, manure, 
horse or tractor plowing and cultivation was also defrayed from 
this fund. Part of the cost of transportation in survey work, ete. 
was paid by the Division of Forest Pathology, U.S. D. A. This 
Division, as usual, supplied us with pollen of the American chestnut 
from the nurseries at Bell, Md. Mr. R. B. Clapper, Senior 
Scientific Aid of the Division of Forest Pathology, personally 
visited our plantation on July | and 2, bringing the American 
pollen with him from Washington, and during his stay assisted us 
in the cross pollination work. It is a pleasure to be able to ac- 
knowledge here the invaluable assistance from these sources and 
to thank the many individuals who have given us helpful informa- 
tion. 
New Hybrids —In 1934 we began crossing other species, 1 
addition to the Japanese and American, in order to get as many 
new combinations as possible, each cross being made with a definite 
purpose in mind. (See Brookityn Bor. Garp. Recorp 24: 61, 
62. 1935.) Thus eight new crosses were made in 1934: we have 
seedlings from seven of these now growing on our trial grounds 
at Hamden. 
The following table gives the results of our hybridization work 
in 1935. The figures at the extreme left, in parentheses, are given 
for convenience in referring later to a particular combination. 
Those combinations marked with a single asterisk are, as far as 
we can ascertain from the literature, new to science. Those marked 
with a double asterisk, while not new combinations, are reciprocal 
crosses which, we believe, have never been made before. As is 
the generally recognized custom, the name of the female parent is 
given first. 
Iiysrins or 1935 
Long Island (New York) Hybrids 
(In all cases using American chestnut Castanea dentata (coppice) as female) 
No. of 
Yuts 
(1)** 49 American chestnut crossed with Chinese echesunat (C. mollissima) 
(2)** 11 American chestnut crossed with “ S8” 
i is the result of a cross made by Dr. Walter Van Fleet of. the 
A.; apparently it is a combination of Castanea crenata and C. 
Pan 
