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Results for "smithsonian photo collections"
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Subject: Botany
Subject: Nutrition
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Botany (6)
Nutrition (6)
Plants (6)
Berkeley (3)
D. R (Dennis Robert) 1884-1949 (3)
Hoagland (3)
University of California (3)
Plant diseases (2)
Agriculture (1)
Burd (1)
California Agricultural Experiment Station (1)
Frederick Charles 1889-1966 (1)
Gerretsen (1)
Hibbard (1)
International Congress of Soil Science (1)
John Sedgwick 1876-1965 (1)
P. L (Paul Llewellyn) 1866-1947 (1)
Soil microbiology (1)
Soil science (1)
University of California (1868-1952) College of Agriculture (1)
University of Groningen (1)
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Showing results 1 - 6 of 6 for
smithsonian photo collections
John Sedgwick Burd (1876-1965)
Dennis Robert Hoagland (1884-1949)
Date:
1931
Dennis Robert Hoagland (1884-1949)
Paul Llewellyn Hibbard (1866-1947)
Dennis Robert Hoagland (1884-1949)
Date:
1941 01/03/1941
Frederick Charles Gerretsen (1889-1966)
Showing results 1 - 6 of 6 for
smithsonian photo collections