Chapter 47

two final parts.

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In Crown 8vo, Handsome Cloth. Price 7s. 6d. net.

~_FERMENTS_ AND THEIR ACTIONS.~

_A Text-book on the Chemistry and Physics of Fermentative Changes._

BY CARL OPPENHEIMER, PH.D., M.D., Of the Physiological Institute at Eilangen.

TRANSLATED FROM THE GERMAN BY C. AINSWORTH MITCHELL, B.A., F.I.C., F.C.S.

ABRIDGED CONTENTS.--Introduction.--Definition.--Chemical Nature of Ferments.--Influence of External Factors.--Mode of Action.--Physiological Action.--Secretion.--Importance of Ferments to Vital Action.--Proteolytic Ferments.--Trypsin.--Bacteriolytic and Hæmolytic Ferments.--Vegetable Ferments.--Coagulating Ferments.--Saccharifying Ferments.--Diastases.--Polysaccharides.--Enzymes.--Ferments which decompose Glucosides.--Hydrolytic Ferments.--Lactic Acid Fermentation.--Alcoholic Fermentation.--Biology of Alcoholic Fermentation.--Oxydases.--Oxidising Fermentation.--Bibliography.--INDEX.

~The present Translation embodies Notes and Additions to the Work made by the Author subsequent to its Publication in Germany.~

"Such a veritable _multum in parvo_ has never yet appeared. The author has set himself the task of writing a work on Ferments that should embrace human erudition on the subject"--_Brewers' Journal_.

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SECOND EDITION, Revised. In Large 8vo. Handsome Cloth. With Plate and Illustrations. Price 21s.

~THE PRINCIPLES AND PRACTICE OF BREWING.~

FOR THE USE OF STUDENTS AND PRACTICAL MEN.

BY

WALTER J. SYKES, M.D., D.P.H., F.I.C.,

EDITOR OF "THE ANALYST."

ABSTRACT OF CONTENTS.

I. Physical Principles involved in Brewing Operations. Chemistry with special reference to the materials used in Brewing.

II. The Microscope. Vegetable Biology. Fermentation.

III. Water. Barley and Malting. Brewery Plant. Brewing. Beer and its Diseases.

Appendices.

Index.

"A volume of Brewing Science, which has long been awaited.... We consider it one of THE MOST COMPLETE in CONTENTS and NOVEL IN ARRANGEMENT that has yet been published.... Will command a large sale."--_The Brewers' Journal._

"The appearance of a work such as this serves to remind us of the ENORMOUSLY RAPID ADVANCES made in our knowledge of the Scientific Principles underlying the Brewing Processes.... Dr. Sykes' work will undoubtedly be of the GREATEST ASSISTANCE, not merely to Brewers, but to all Chemists and Biologists interested in the problems which the Fermentation Industries present."--_The Analyst._

"The publication of DR. SYKES' MASTERLY TREATISE on the art of Brewing is quite an event in the Brewing World.... Deserves our warmest praise.... A better guide than Dr. Sykes could hardly be found."--_County Brewers' Gazette._

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In Large 8vo. Handsome Cloth.

~AGRICULTURAL CHEMISTRY AND ANALYSIS:~

_A PRACTICAL HANDBOOK FOR THE USE OF AGRICULTURAL STUDENTS._

BY

J.M.H. MUNRO, D.Sc., F.I.C., F.C.S.,

Professor of Chemistry, Downton College of Agriculture.

[_In Preparation._

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SECOND EDITION, REVISED AND ENLARGED.

With Tables, Illustrations in the Text, and 37 Lithographic Plates. Medium 8vo. Handsome Cloth. 30s.

~SEWAGE DISPOSAL WORKS:~

A Guide to the Construction of Works for the Prevention of the Pollution by Sewage of Rivers and Estuaries.

BY W. SANTO CRIMP, M.INST.C.E., F.G.S., Late Assistant-Engineer, London County Council.