Index to American Mycological Literature 199 



Stork, H. E. Biology, morphology, and cytoplasmic structure of 

 Al euro discus. Am. Jour. Bot. 7*. 445-457. pi. 31-33. 12 Ja 

 192 1. 



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



Mycologia 12 : 329-333. 1920. 

 Thomas, H. E. The relation of the health of the host and other 



factors to infection of Apium graveolens by Septoria Apii. 



Bull. Torrey Club 49: 1-29. 1921. 

 Waksman, S. A. Studies in the metabolism of Actinomycetes — 



III. Nitrogen metabolism. Jour. Bact. 5 : 1-30. Ja 1920. 

 Waksman, S. A., & Joffe, J. S. Studies in the metabolism of 



Actinomycetes — IV. Changes in reaction as a result of the 



growth of Actinomycetes upon culture media. Jour. Bact. 5 : 



31-48. Ja 1920. 

 Winslow, C.-E. A., and others. The families and genera of the 



Bacteria. Jour. Bact. 5 : 191-229. My 1920. 

 Wolden, B. 0. The moss and lichen flora of Western Emmet 



County (Iowa). Proc. Iowa Acad. Sci. 26: 258-267. 1919. 



