. Bulletin. Agriculture. Bui, .''I 3. Bureau of Plant Industry. U. S. Dept, of Agriculture. P! ATT Bacterium tumefaciens on culture media: (a) Daisy organism; agar plate from bouillon; incubated 4 days at 22 to 25° C. (b) Daisy organism from a tumor; agar plate 8 days old. (c) Gall organism from a peach gall; agar plate 14 days old. (d) Hard gall of apple on agar poured plate at end of 5 days after being used for inoculations. The large colony is an intruder, (e) Same as a. (f) Needle stroke of daisy organism on slant agar, photographed after some days, (g) Old tube of sterile milk, (h)

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. Bulletin. Agriculture. Bui, .''I 3. Bureau of Plant Industry. U. S. Dept, of Agriculture. P! ATT Bacterium tumefaciens on culture media: (a) Daisy organism; agar plate from bouillon; incubated 4 days at 22 to 25° C. (b) Daisy organism from a tumor; agar plate 8 days old. (c) Gall organism from a peach gall; agar plate 14 days old. (d) Hard gall of apple on agar poured plate at end of 5 days after being used for inoculations. The large colony is an intruder, (e) Same as a. (f) Needle stroke of daisy organism on slant agar, photographed after some days, (g) Old tube of sterile milk, (h) Similar tube inoculated 2 months with daisy organism, showing the pellicle formed and slow separa- tion of whey from casein which remains undigested and 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. Washington : G. P. O.

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