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All Creators
Leach, J. G. (Julian Gilbert), b. 1894.
Remove constraint All Creators: Leach, J. G. (Julian Gilbert), b. 1894.
All Creators
Purvis, Matthew Robert, 1929-
Remove constraint All Creators: Purvis, Matthew Robert, 1929-
Subject Topical
Bacteriology, Agricultural.
Remove constraint Subject Topical: Bacteriology, Agricultural.
Subject Topical
Beans--Diseases and pests.
Remove constraint Subject Topical: Beans--Diseases and pests.
Subject Topical
Fire-blight.
Remove constraint Subject Topical: Fire-blight.
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