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(114) ROSENBATTM, J. 



1917. Studies of the genus Phytophthora. In Jour. Agr. Research, 

 v. S, No. 7, p. 233-276, 13 fig., pi. 71-77. Literature cited, 

 p. 273-276. 



RUHLAND. W. 



(115) 1908. Beitrag zur Kenntniss des sog. " Verniehrungspilzes." In Arb. 



K. Biol. Anst. Land- u. Forstw., Bd. 6, Heft 1, p. 71-76, 3 abb. 

 '(116) 190S. Beitrag zur Kenntniss des sog. " Vermehi angspilzes." In Mitt. 



K. Biol. Anst. Land- u. Forstw., Heft 6, p. 24-25. 

 (117) Sadebeck, R. 



1S74. Ueber Pythium Equiseti. In Verhandl. Bot. Ver. Brandenb., 

 Jahrg. 16, p. 116-124. 

 >(118) .Saxtox, W. T. 



1913. The classification of conifers. In New Phytol., v. 12, no. 7, 

 p. 242-262, 1 fig. List of references, p. 259-262, 



(119) SCHAAF, MAKCUS. 



1915. Report of the State forester. In Rpt. Mich. Pub. Domain Com., 

 1913/14, p. 60-106, [27] fig. 

 '(120) Schelle, E. 



1909. Pie winterharten Nadelholzer Mitteleuropas . . . viii, 356 p., 

 173 fig., map. Stuttgart. 



(121) Scholz, Edtjaed. 



1S97. Rhizoctonia strobi, ein neuer Parasit der Weymouthskiefer. 

 In Verhandl. K. K. Zool. Bot. Gesell. Wien, Bd. 47, Heft. 8, 

 p. 541-557, 6 abb. 



(122) Schramm, R. 



1904. Zum Absterben junger, unverholzter Nadelholzpflanzen im 

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(123) Scott, Charles A. 



1917. A practical method of preventing the damping-off of coniferous 

 seedlings. In Jour. Forestry, v. 15, no. 2, p. 192-196, 2 pi. 



(124) Secrist, Horace. 



1917. An Introduction to Statistical Methods ... 482 p., 2S pi. 

 New York. 

 '(125) Selby, A. D. 



1910. A brief handbook of the diseases of cultivated plants in Ohio. 

 Ohio Agr. Exp. Sta. Bui. 214, p. 307-456, i-vii, 105 fig. Literature 

 of plant diseases, p. i-vii. 



(126) and Maxns, Thomas F. 



1909. Studies in diseases of cereals and grasses. Ohio Agr. Exp. Sta. 

 Bui. 203, p. 187-236, 7 fig., 14 pi. 

 Sherbakoff, C. D. 



(127) 1916. Report of the assistant plant pathologist. In Fla. Agr. Exp 



Sta. Rpt. 1914/15, p. xciv-xcviii. 



(128) 1917. Report of the associate plant pathologist. In Fla. Agr. Exp. 



Sta. Ki'l- 1015/16, p. S0R-9SR, fig. 12-16. 



(129) 1917. Some important diseases of truck crops in Florida. Fla. Agr. 



Exp. Sta. Bui. 139, p. [191]-277, fig. 75-112. 



(130) Smith, Rat.th E. 



1909. Report of the plant pathologist and superintendent of southern 

 California stations, July 1, 1906, to June 30, 1909. Cal. Agr. 

 Exp. Sta. Bui. 203, 03 p., 23 fig. 



