. Bulletin. 1901-13. Agriculture; Agriculture. I'.: lureau a] flam Industry L'. FORMATION Oh"THESPORES IN RHIZOPUS NIGRICANS AND PHYCOMYCES NITENS. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original United States. Bureau of Plant Industry, Soils, and Agricultural Engineering. Washington Govt. Print. Off

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