The Helminthosporium Foot-Rot of Wheat: With Observations on the Morphology of Helminthosporium and on the Occurrence of Saltation in the Genus (Class (Paperback)
The Helminthosporium Foot-Rot of Wheat: With Observations on the Morphology of Helminthosporium and on the Occurrence of Saltation in the Genus (Hardcover)
The Helminthosporium Foot-Rot of Wheat: With Observations on the Morphology of Helminthosporium and on the Occurrence of Saltation in the Genus (1922) (Hardcover)
The Genus Meliola in Porto Rico: Including Descriptions of Sixty-Two New Species and Varieties and a Synopsis of All Known Porto Rican Forms; With Fiv (Paperback)
