=Oil of Turpentine= is the most plentiful and useful of oils.  It is obtained in America from a species of pine very plentiful in the Carolinas, Georgia, and Alabama, known as the long-leaved pine (pinus Australis), and found only where the original forest has not been removed.

=Methylated Spirits.=—­The methylated spirit of commerce usually consists of the ordinary mixed grain, or “plain” spirit, as produced by the large distillers in London and elsewhere, with which are blended, by simply mixing in various proportions, one part vegetable naphtha and three parts spirits of wine.  The mixing takes place in presence of a revenue officer, and the spirits so “methylated” are allowed to be used duty free.  The revenue authorities consider the admixture of naphtha, having so pungent and disagreeable a smell, a sufficient security against its sale and consumption as a beverage.  No process has yet been discovered of getting rid of this odour.  It is illegal for druggists to use it in the preparation of medicinal tinctures, unless they are for external use.

PRINTED BY WILLIAM CLOWES AND SONS, LIMITED, LONDON AND BECCLES.

CROSBY LOCKWOOD & SON’S

LIST OF WORKS

ON

TRADES AND MANUFACTURES, THE INDUSTRIAL ARTS, CHEMICAL MANUFACTURES, COUNTING HOUSE WORK, ETC.

A Complete Catalogue of NEW and STANDARD BOOKS relating to CIVIL, MECHANICAL, MARINE and ELECTRICAL ENGINEERING; MINING, METALLURGY, and COLLIERY WORKING; ARCHITECTURE and BUILDING; AGRICULTURE and ESTATE MANAGEMENT, etc.  Post Free on Application.

7, STATIONERS’ HALL COURT, LONDON, E.C., AND 121a, VICTORIA STREET, WESTMINSTER, S.W.

1910.

LIST OF WORKS

ON

TRADES and MANUFACTURES, THE INDUSTRIAL ARTS, Etc.

=ACETYLENE, LIGHTING BY.= Generators, Burners, and Electric Furnaces.  By WILLIAM E. GIBBS, M.E.  With 66 Illustrations.  Crown 8vo, cloth =7/6=

=AIR GAS LIGHTING SYSTEMS.= See PETROL GAS.

=ALCOHOL (INDUSTRIAL):  ITS MANUFACTURE AND USES.= A Practical Treatise based on Dr. Max Maercker’s “Introduction to Distillation,” as revised by Drs. DELBRUCK and LANGE.  By J. K. BRACHVOGEL. 500 pages, 105 engravings Net =16/6=

THE INDUSTRIAL VALUE OF TAX-FREE ALCOHOL AND WHAT IT MEANS TO
AGRICULTURAL INTERESTS—­SUMMARY OF THE PROCESSES IN SPIRIT
MANUFACTURE—­STARCH, HOW FORMED, ITS CHARACTERISTICS, AND THE CHANGES
IT UNDERGOES—­ENZYMES OR FERMENTS—­PRODUCTS OF FERMENTATION—­STARCHY
AND SACCHARIFEROUS RAW MATERIALS—­PREPARATION OF THE MALT—­STEAMING
THE RAW MATERIAL—­THE MASHING PROCESS—­FERMENTING THE MASH—­PREPARATION
OF ARTIFICIAL YEAST IN THE DISTILLERY—­FERMENTATION IN
PRACTICE—­DISTILLATION AND RECTIFICATION—­ARRANGEMENT OF THE
DISTILLERY—­THE SPENT WASH—­DENATURING OF ALCOHOL—­ALCOHOL FOR THE
PRODUCTION OF POWER, HEATING AND ILLUMINATION—­STATISTICS.