U. S. DEPARTMENT OF AGRICULTURE. 



BUREAU OF PLANT INDUSTRY^ BULLETIN NO. 90. 



B. T. GALLOWAY, Chief of Bureau. 



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MISCELLANEOUS PAPERS. 



1. THE STORAGE AND GERMINATION OF WILD RICE SEED. 



By J. W. T. DUVEL, Assistant. 



II. THE CROWN-GALL AND HAIRY-ROOT DISEASES OF THE APPLE TREE. 



By GEORGE G. HEDG€OCK, Assistant. 



III. PEPPERMINT. 



By ALICE HENKEL, Assistant. 



IV. THE POISONOUS ACTION OF JOHNSON GRASS. 



By A. C. CRAWFORD, Pharmacologist. 



USfvWRY 



NHVV YORK 



BOTANICAL 



Issued Febkiaky 21, 1906. 



WASHINGTON: 



GOVERNMENT PRINTING OFFICE. 



190 6. 



