52 BULLETIN 1256, U. S. DEPARTMENT OF AGRICULTURE. 



(39) French, G. T. 



1921. Tobacco seed cleaned and treated with formaldehyde solution 

 for wild fire and angular leaf-spot. In Va. Dept. Agr. and 

 Immigration Bui. 164, p. 8-9. 



(40) Fbomme, F. D. 



1920. Wildfire and angular-spot. In Va. Agr. and Mech. Col. Ext. 



Div. Bui. 62, p. 25-31, illus. 



(41) and T. J. Murray. 



1919. Angular-leaf spot of tobacco, an undescribed bacterial disease. 



In Jour. Agr. Research, v. 16. p. 219-228. pi. 25-27. Lit- 

 erature cited, p. 227-228. 



(42) and S. A. Wingard. 



1921. Treatment of tobacco seed and suggested program for con- 



trol of wildfire and angular leaf-spot. (Abstract.) In 

 Phytopathology, v. 11, p. 48-49. 



(43) 1922. Blackfire and wildfire of tobacco and their control. Va. Agr. 



Exp. Sta. Bui. 228, 19 p., 9 fig., 2 col. pi. 



(44) 1922. Blackfire or angular leaf spot of tobacco. Va. Agr. Exp. Sta. 



Tech. Bui. 25, 43 p., 18 fig., 2 col. pi. Literature cited, p. 

 42-43. 



(45) Gardner, M. W.. and J. B. Kendrick. 



1922. Overwintering of tomato mosaic. In Bot. Gaz.. v. 73. p. 469- 



485, pi. 17. Literature cited, p. 484-485. 



(46) Garman. H. 



1890. The broom-rape of hemp and tobacco. Ky. Agr. Exp. Sta. Bui. 

 24, 20 p., fig. 8. 



(47) 1903. The broom-rapes. Ky. Agr. Exp. Sta. Bui. 105, 32 p., 15 fig. 



(48) Garner, W. W.. J. E. McMttrtrey. and E. G. Moss. 



1922. Sand-drown, a chlorosis of tobacco. In Science, n. s., v. 56, 



p. 341-342. 



(49) C. W. Bacon and E. G. Moss. 



1923. Sand-drown, a chlorosis of tobacco due to magnesium de- 



ficiency, and the relation of sulphates and chlorids of potas- 

 sium to the disease. In Jour. Agr. Research, v. 23. p. 

 27-40, 7 pi. Literature cited, p. 40. 



(50) F. A. Wolf and E. G. Moss. 



1917. The control of tobacco wilt in the flue-cured district. U. S. 

 Dept. Agr. Bui. 562, 20 p., 5 fig. Literature cited, p. 20. 



(51) Gilbert, W. W. 



1909. The root-rot of tobacco caused by Thielavia basicola. I'. S. 



Dept. Agr., Bur. Plant Indus. Bui. 158, 55 p., 5 pi. Bibliog- 

 graphy, p. 44-48. 



(52) Harvey, R. B. 



1920. Hydrogen ion changes in the mosaic disease of tobacco plants 



and their relation to catalase. In Jour. Biol. Chem.. v. 42. 

 p. 397-400. 



(53) Haskins, H. D. 



1912. Tobacco injury due to malnutrition or overfertilization. Fn 

 Mass. Agr. Exp. Sta. 24th Ann. Rpt., 1911. p. 35-4(5. 



(54) Hinson, W. M., and E. H. Jenkins. 



1910. The management of tobacco seed beds. Conn. Agr. Exp. Sta. 



Bui. 166, 11 p., illus. 



(55) Houser. True. 



1920. Root rot of tobacco. In Ohio Agr. Exp. Sta. Mo. Bui. v. 5, 

 p. 232-234. 



(56) Jenkins, E. H. 



1914. Fungous and other diseases of tobacco. In Conn. Agr. Exp. Sra. 

 Bui. 180, p. 46-57. fig. 9-15. 



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