612 BULLETIN 347 
Clinton G. P.— (continued) ; 
1911 Notes on plant diseases of Connecticut. Connecticut Agr. Exp. 
Sta. Rept. 33-34 (for 1909-1910): 716-717, 725 
Author discusses distribution in Connecticut and his belief that the fungus 
is of native origin. Japanese and European chestnuts proved susceptible. 
1912a The relationships of the chestnut blight fungus. Science 
36:907-914. Sia Ocal scala 
Discusses the three forms of Endothia in America as E. radicalis (linear- 
spored), E. gyrosa (narrowly-oval-spored) and £. gyrosa var. parasitica 
broadly-oval-spored, the true chestnut-blight fungus), thus considering the 
blight fungus as a variety of the native saprophytic form. 
1912 b Chestnut blight fungus and its allies. Phytopath. 2:265~269. 
Author repeats his arguments given in Science in the same month, and 
states that he has solved the mystery of Schweinitz’s lost specimen of Sphaeria 
gyrosa. 
I912c Some facts and theories concerning chestnut blight. Penn- 
sylvania Chestnut Blight Conference. Stenographic rept., 
p. 75-83. Harrisburg, ror2. 
Author presents arguments to support his belief that the fungus is of native 
origin and that weather conditions are a predisposing factor. 
1913. Chestnut bark disease. Connecticut Agr. Exp. Sta. Rept. 
36 (for 1912):359-453. on 
Historical summary, distribution, description of fungus, synonymy, 
reasons for believing the fungus is of native origin, weather conditions as a 
predisposing factor, arguments against practicability of the cutting-out 
method, bibliography. 
Collins, J. F. 
1911 The chestnut bark disease. Northern Nut Growers’ Association. 
Proceedings of the second annual meeting. ‘Unpaged reprint 
consulted.) 
General address on the disease. 
.I912a Treatment of orchard and ornamental trees. Pennsylvania 
Chestnut Blight Conference. Stenographic rept., p. 59-69. 
Harrisburg, 1912. 
Detailed description of tree-surgery methods. 
1912 b Some observations on experiments with the chestnut bark 
disease. ° Phytopath. 2:97. 
Abstract of paper read before the American Phytopathological Society, 
December, 1911. Failure of tree-surgery methods due to the fact that the 
mycelium penetrates the wood. Author does not believe that conidia are 
disseminated by the wind. 
1913 The chestnut bark disease on chestnut fruits. Science 38:8 57- 
858. 
Cook, M. T. 
1911 The relation of parasitic fungi to the contents of the cells of the 
host plants. Delaware Agr. Exp. Sta. Bul. o1:er. 
Effect of different percentages of tannin on growth of the fungus in culture. 
Craighead, F. C. 
1912 Insects contributing to the control of the chestnut blight disease. 
Science 36:825. 
Finds that the stromata are eaten by five different species of insects, and 
considers them instrumental in checking the spread of the fungus. 
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