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DEPARTMENT OF AGRICULTURE.

BOTANICAL DIVISION.

BULLETIN NO. 7.

SECTION OF VEGETABLE PATHOLOGY.

BLACK ROT

(LÆSTADIA BIDWELLII).

BY

F. LAMSON SCRIBNER,
OHIEF OF THE SECTION OF VEGETABLE PATHOLOGY,

AND

Sray Herbarium narvard University

PIERRE VIALA,

PROFESSOR OF VITICULTURE IN THE NATIONAL SCHOOL OF

AGRICULTURE AT MONTPELLIER, FRANCE.

HARVARD UNIVERSITY HERBARIUM.

THE GIFT OF

152

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WASHINGTON:
GOVERNMENT PRINTING OFFICE.

DEPARTMENT OF AGRICULTURE.

BOTANICAL DIVISION.

BULLETIN NO. 7.

SECTION OF VEGETABLE PATHOLOGY.

BLACK ROT

(LÆSTADIA BIDWELLII).

BY

F. LAMSON SCRIBNER,
OHIEF OF THE SECTION OF VEGETABLE PATHOLOGY,

AND

gray Herbarium
narvard University

PIERRE VIALA,

PROFESSOR OF VITICULTURE IN THE NATIONAL SCHOOL OF

AGRICULTURE AT MONTPELLIER, FRANCE.

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