THE INTERNATIONAL SCIENTIFIC SERIES.

Works already Published.

1. FORMS OF WATER, IN CLOUDS, RAIN, Rivers, Ice, and GLACIERS. By Prof. JOHN TYNDALL, LL. D., F. R. S. 1 vol. Cloth. Price, $1.50. II. PHYSICS AND POLITICS; OR, THOUGHTS ON THE APPLICATION OF THE PRINCIPLES OF "NATURAL SELECTION" AND "INHERITANCE ΤΟ POLITICAL SOCIETY. BY WALTER BAGEHOT, Esq., author of "The English Constitution." I vol. Cloth. Price, $1.50.

"

III. FOODS. By EDWARD SMITH, M. D., LL. B., F. R. S. I vol. Cloth. Price, $1.75.

IV

MIND AND BODY: THE THEORIES OF Their Relations. By ALEX. BAIN, LL. D., Professor of Logic in the University of Aberdeen. I vol., 12mo. Cloth. Price, $1.50.

V. THE STUDY OF SOCIOLOGY.

$1.50.

VI. THE NEW CHEMISTRY.
University. I vol., 12mo.

VII. THE CONSERVATION OF

By HERBERT Spencer.

Price,

By Prof. JOSIAH P. COOKE, Jr., of Harvard
Cloth. Price, $2.00.

ENERGY. By Prof. BALFOUR STEW

ART, LL. D., F. R. S. I vol., 12mo. Cloth. Price, $1.50.

VIII. ANIMAL LOCOMOTION; OR, WALKING, SWIMMING, AND FLYING, WITH A DISSERTATION ON AERONAUTICS. By J. BELL Pettigrew, M. D., F. R. S. E., F. R. C. P. E. 1 vol., 12mo. Fully illustrated. Price, $1.75.

IX. RESPONSIBILITY IN MENTAL

LEY, M. D.

I vol., 12mɔ.

Cloth.

DISEASE. By HENRY MAUDSPrice, $1.50.

X. THE SCIENCE OF LAW. By Prof. SHELDON AMOS. I vol., 12mo. Cloth. Price, $1.75.

XI. ANIMAL MECHANISM.

A TREATISE ON TERRESTRIAL AND AERIAL

LOCOMOTION. By E. J. MAREY. With 117 Illustrations. Price, $1.75. XII. THE HISTORY OF THE CONFLICT BETWEEN RELIGION AND SCIENCE. By JOHN WM. DRAPER, M. I., LL. D., author of "The Intellectual Development of Europe.' Price, $1.75.

XIII. THE DOCTRINE OF DESCENT, AND DARWINISM. By Prof. OSCAR SCHMIDT, Strasburg University. Price, $1.50.

XIV. THE CHEMISTRY OF LIGHT AND PHOTOGRAPHY. IN ITS APPLICATION TO ART, SCIENCE, AND INDUSTRY. By Dr. HERMANN VOGEL. 100 Illustrations. Price, $2.00.

XV. FUNGI; THEIR NATURE, INFLUENCE, AND USES.
M. A, LL. D. Edited by Rev. M. J. BERKELEY, M.
109 Illustrations. Price, $1.50.

XVI. THE LIFE AND GROWTH OF LANGUAGE.
WHITNEY, of Yale College. Price, $1.50.

By M. C. COOKE,
A', F. L. S. With

By Prof. W. D.

XVII. MONEY AND THE MECHANISM OF EXCHANGE.

By W.

STANLEY JEVONS, M. A., F. R. S., Professor of Logic and Political
Economy in the Owens College, Manchester. Price, $1.75.

XVIII. THE NATURE OF LIGHT, WITH a General ACCOUNT OF PHYSICAL
OPTICS. By Dr. EUGENE LOMMEL, Professor of Physics in the Uni-
versity of Erlangen. With 188 Illustrations and a Plate of Spectra in
Chromolithography. Price, $2.00.

XIX. ANIMAL PARASITES AND MESSMATES.

By Monsieur VAN

BENEDEN, Professor of the University of Louvain, Correspondent of the
Institute of France. With 83 Illustrations. Price, $1.50.

ON

FERMENTATION

BY

P. SCHÜTZENBERGER

DIRECTOR AT THE CHEMICAL LABORATORY AT THE SORBONNE

HARVARD UNIVERSITY LIBRARY

MAR 5 1941

. 159

CHAPTER VI.

ACTION OF VARIOUS CHEMICAL AND PHYSICAL AGENTS

ON ALCOHOLIC FERMENTATION