176 



RAVN, K. 



(91) 1900. Nogle Helminthosporium-arter og de af dem fremkaldte Sygdomme hos 

 Byg og Havre. Bot. Tid. 23: 101-327.* 



REED, G. M. 



(92) 1905. Infection experiments with Erysiphe graminis. Trans. Wis. Acad. 

 Sci. 15: 135-162. 



(93) 1918. Physiological specialization of parasitic fungi. Mem. Brooklyn Bot. 

 Card. 1: 348-469. 



REVIS, C. 



(94) 1912. The production of variation in the physiological activity of Bacillus coli 

 by the use of malachite green. Proc. Roy. Soc. (London) Ser. B. 85: 192. 



ROSTRUP, E. 



(95) 1894. Mykologiske meddelelser. Bot. Tid. 19: 36-51. 



(96) 1896. Biologiske Arter og Racer. Bot. Tid. 20: 116-125. 

 SACCARDO, P. A. 



(97) 1882 . Sylloge fungorum omnium hucusque cognitorum. Padua. 



SALMON, E. S. 



(98) 1903. On specialization of parasitism in the Erysiphaceae. Beih. Bot. Centr. 

 14: 261. 



SCHELLENBERG, H. C. 



(99) 1908. Untersuchungen iiber das Verhalten einiger Pilze gegen Hemizellulosen. 

 Flora, 98: 257-308. 



SCHIEMANN, E. 



(100) 1912. Mutationen bei Aspergillus niger van Tieghem. Zeit. Indukt. Ab- 

 stamm.- u. Vererbungslehre 8: 35. 



SCHROETER, J. 



(101) 1879. Entwickelungsgeschichte einiger Rostpilze. Cohn's, Beit z. Biol. d. 

 Pflanzen, 3: 51-93. 



SHAMEL, A. D., SCOTT. L. B., and POMEROY, C. S. 



(102) 1920. Citrus-fruit improvement. A study of bud variation in the Eureka 

 lemon. U. S. Dept. Agr. Bui. 813. 



(103) 1920. Citrus-fruit improvement. A study of bud variation in the Lisbon 

 lemon. U. S. Dept. Agr. Bui. 815. 



SHEAR, C. L., and STEVENS, N. E. 



(104) 1913. Cultural characters of the chestnut blight fungus and near relatives. 

 U. S. Bur. Plant Ind. Circ. 131. 



SHEAR, C. L., and WOOD, A. K. 



(105) 1913. Studies of fungous parasites belonging to the genus Glomerella. U. S. 

 Bur. Plant Ind. Bui. 252. 



SMITH, E. F. 



(106) 1899. Wilt disease of cotton, watermelon, and cowpea. U. S. Dept. Agr. Div. 

 Veg. Phys. and Path. Bui. 17: 23. 



SOROKIN, N. 



(107) . Ueber einige Krankheiten der Kulturpflanzen im Siid-Ussurischen 

 Gebiet. Trudy Obshchestva Estestvoipisatelei. Imp. Univ. of Kazan. 



*My notes from this important article were made from a photographic reproduction of a typewritten 

 translation kindly loaned to the University by the Library of the U. S. Department of Agric ulture. 



