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Samples of bacteria colonies in milk. Sample on right was made before pasteurization and that on the left after pasteurization. Samples were used in bacteriology class of the Dairy Industry Department to show that not all bacterial colonies are destroyed in pasteurization. Iowa State Collge, Ames, Iowa

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Samples of bacteria colonies in milk. Sample on right was made before pasteurization and that on the left after pasteurization. Samples were used in bacteriology class of the Dairy Industry Department to show that not all bacterial colonies are destroyed in pasteurization. Iowa State Collge, Ames, Iowa

description

Summary

Picryl description: Public domain image of food, dinner, grocery store, eating, 1930s, mid-20th-century United States, free to use, no copyright restrictions.

date_range

Date

01/01/1942

person

Contributors

Delano, Jack, photographer

place

Location

Ames, 42.03471, -93.61994

Google Map of 42.03471, -93.61994

create

Source

Library of Congress

link

Link

http://www.loc.gov/

copyright

Copyright info

No known restrictions. For information, see U.S. Farm Security Administration/Office of War Information Black & White Photographs http://www.loc.gov/rr/print/res/071_fsab.html