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Leach, J. G. (Julian Gilbert), b. 1894.
Remove constraint All Creators: Leach, J. G. (Julian Gilbert), b. 1894.
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Purvis, Matthew Robert, 1929-
Remove constraint All Creators: Purvis, Matthew Robert, 1929-
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Fire-blight.
Remove constraint All Subjects: Fire-blight.
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Polysaccharides.
Remove constraint All Subjects: Polysaccharides.
Subject Topical
Plant exudates.
Remove constraint Subject Topical: Plant exudates.
Subject Topical
Polysaccharides.
Remove constraint Subject Topical: Polysaccharides.
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