LETTER OF TRANSMITTAL.

UNITED STATES DEPARTMENT OF AGRICULTURE,

BUREAU OF ANIMAL INDUSTRY,

_Washington, D. C., November 2, 1910_.

SIR: I have the honor to transmit and to recommend for publication as

a bulletin of this Bureau a paper entitled “A Bacteriological Study

of Ham Souring,” by Dr. C. N. McBryde, senior bacteriologist in the

Biochemic Division of this Bureau.

The souring of hams is a source of considerable loss in the

meat-packing industry, and the cause of this trouble has heretofore

been in doubt. Dr. McBryde’s paper presents the results of an

exhaustive study of the subject, from which it appears that he has

succeeded in discovering the true cause of the trouble. Besides a

description of the experimental work the paper discusses methods of

preventing the souring of hams and the proper disposal of those which

have become affected.

Respectfully, A. D. MELVIN,

_Chief of Bureau_.

Hon. JAMES WILSON,

_Secretary of Agriculture_.

A bacteriological study of ham souring · 第 4 / 80 题