Index to American Mycological Literature 161 



Stevens, H. E. Florida citrus diseases. Florida Agr. Exp. Sta. 



Bull. 150: i-iio. /. 6-54. Au 1918. 

 Stevens, H. E. Report of plant pathologist. Citrus diseases. 



Florida Agr. Exp. Sta. Report 1917 : 66R-75R /. 2. My 1918. 

 Stevenson, J. A. La enfermedad de las raices de la Cana. Re- 

 vista Agr. Puerto Rico i : 269-279. /. 50-52. O 1918. 

 Swingle, D. B., & Morris, H. E. Crown-gall injury in the orchard. 



Montana Agr. Exp. Sta. Bull. 121 : 123-139. /. 1-6. Ja 1918. 

 Tanaka, T. New Japanese fungi. Notes and translations — V. 



Mycologia 10: 285-288. 23 N 1918. 

 Thomas, H. E. Report of the plant pathologist. Rep. Porto 



Rico Agr. Exp. Sta. 1917: 28-30. S 1918. 

 True, R. H., & others. Physiological studies of normal and 



blighted spinach. Jour. Agr. Research 15 : 369-408. 18 N 



1918. 



Waksman, S. A., & Curtis, R. E. The occurrence of Actinomy- 

 cetes in the soil. Soil. Sci. 6: 309-319. O 1918. 



Weir, J. R., '& Hubert, E. E. A study of heart-rot in western 

 hemlock. U. S. Dept. Agr. Bull. 722 : 1-37. /. 1-13. 22 O 

 1918. 



Wenrich, D. H. Stylonichia impaled upon a fungal filament. 

 Science IL 48: 602-604. 13 D 1918. 



Whetzel, H. H. An outline of the history of phytopathology, i- 

 130. Philadelphia. 1918. [lUust.] 



Williams, R. S. Notes on some western lichens. Bull. Torrey 

 Club 46: 21-25. 20 Ja 1919. 



York, H. H., & Spaulding, P. The overwintering of Cronartium 

 rihicola on Ribes. Phytopathology 8: 617-619. D 1918. 



Zinssmeister, C. L. Ramidaria root-rots of ginseng. Phytopa- 

 thology 8 : 557-571- /• 1-8- N 1918. 



