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Creator Personal Names
Leach, J. G. (Julian Gilbert), b. 1894.
Remove constraint Creator Personal Names: Leach, J. G. (Julian Gilbert), b. 1894.
Creator Personal Names
Lilly, Virgil Greene, b. 1900.
Remove constraint Creator Personal Names: Lilly, Virgil Greene, b. 1900.
Subject Topical
Fire-blight.
Remove constraint Subject Topical: Fire-blight.
Subject Topical
Plant exudates.
Remove constraint Subject Topical: Plant exudates.
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