By J. W. F. JOHNSTON. 12mo., $.38

=KEENE.=—=A HAND-BOOK OF PRACTICAL GAUGING=,

For the Use of Beginners, to which is added A Chapter on Distillation,

describing the process in operation at the Custom House for

ascertaining the strength of wines. By JAMES B. KEENE, of H. M.

Customs. 8vo., $1.25

=KENTISH.=—=A TREATISE ON A BOX OF INSTRUMENTS=,

And the Slide Rule; with the Theory of Trigonometry and Logarithms,

including Practical Geometry, Surveying, Measuring of Timber, Cask and

Malt Gauging, Heights, and Distances. By THOMAS KENTISH. In one

volume. 12mo., $1.25

=KOBELL.=—=ERNI.=—=MINERALOGY SIMPLIFIED=:

A short method of Determining and Classifying Minerals, by means of

simple Chemical Experiments in the Wet Way. Translated from the last

German Edition of F. VON KOBELL, with an Introduction to Blowpipe

Analysis and other additions. By HENRI ERNI, M. D., Chief Chemist,

Department of Agriculture, author of “Coal Oil and Petroleum.” In one

volume, 12mo., $2.50

=LAFFINEUR.=—A= PRACTICAL GUIDE TO HYDRAULICS FOR TOWN AND COUNTRY=;

Or a Complete Treatise on the Building of Conduits for Water for

Cities, Towns, Farms, Country Residences, Workshops, etc. Comprising

the means necessary for obtaining at all times abundant supplies of

Drinkable Water. Translated from the French of M. JULES LAFFINEUR, C.

E. Illustrated. (In press.)

=LAFFINEUR.=—=A TREATISE ON THE CONSTRUCTION OF WATER-WHEELS=:

Containing the various Systems in use with Practical Information on

the Dimensions necessary for Shafts, Journals, Arms, etc., of

Water-wheels, etc. etc. Translated from the French of M. JULES

LAFFINEUR, C. E. Illustrated by numerous plates. (In press.)

=LANDRIN.=—=A TREATISE ON STEEL=:

Comprising the Theory, Metallurgy, Practical Working, Properties, and

Use. Translated from the French of H. C. LANDRIN, JR., C. E. By A. A.

FESQUET, Chemist and Engineer. Illustrated. 12mo. (In press.)

=LARKIN.=—=THE PRACTICAL BRASS AND IRON FOUNDER’S GUIDE=:

A Concise Treatise on Brass Founding, Moulding, the Metals and their

Alloys, etc.; to which are added Recent Improvements in the

Manufacture of Iron, Steel by the Bessemer Process, etc. etc. By JAMES

LARKIN, late Conductor of the Brass Foundry Department in Reaney,

Neafie & Co.’s Penn Works, Philadelphia. Fifth edition, revised, with

Extensive additions. In one volume, 12mo., $2.25

=LEAVITT.=—=FACTS ABOUT PEAT AS AN ARTICLE OF FUEL=:

With Remarks upon its Origin and Composition, the Localities in which

it is found, the Methods of Preparation and Manufacture, and the

various Uses to which it is applicable; together with many other

matters of Practical and Scientific Interest. To which is added a

chapter on the Utilization of Coal Dust with Peat for the Production

of an Excellent Fuel at Moderate Cost, especially adapted for Steam

Service. By H. T. LEAVITT. Third edition. 12mo., $1.75

=LEROUX.=—=A PRACTICAL TREATISE ON WOOLS AND WORSTEDS=:

Translated from the French of CHARLES LEROUX, Mechanical Engineer, and

Superintendent of a Spinning Mill. Illustrated by 12 large plates and

34 engravings. In one volume 8vo. (In press, _shortly to be

published_.)

=LESLIE (MISS).=—=COMPLETE COOKERY=:

Directions for Cookery in its Various Branches. By MISS LESLIE. 58th

thousand. Thoroughly revised, with the addition of New Receipts. In 1

vol. 12mo., cloth, $1.25

=LESLIE (MISS).=—=LADIES’ HOUSE BOOK=:

a Manual of Domestic Economy. 20th revised edition. 12mo., cloth,

$1.25

=LESLIE (MISS).=—=TWO HUNDRED RECEIPTS IN FRENCH COOKERY.=

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