of Surfaces and Solids; Tables of the Weights of Metals, Lead Pipe, etc.; Tables of Areas and Circumferences of Circles; Japan, Varnishes, Lackers, Cements, Compositions, etc. etc. By LEROY J. BLINN, Master Mechanic. With over One Hundred Illustrations. 12mo. $2.50 CONTENTS.-Rules for Describing Patterns.-An Envelope for a Cone; A Frustrum of a Cone; A Can top or Deck flange; A Pattern for, or an Envelope for a Frustrum of a Cone; A Tapering Oval Article to be in four Sections; A Tapering Oval Article to be in two Sections; A Tapering Oval Article; A Tapering Oval and Oblong Article, the sides to be Straight, with Quarter Circle corners, to be in two Sections; A Tapering Oval or Oblong Article, the sides to be Straight, one end to be a Semicircle, the other end to be Straight, with Quarter Circle corners, to be in two Sections; A Tapering Oval or Oblong Article, the Sides to be Straight, with Semicircle ends, to be in two Sections; Covering of Circular Roofs, Two different Principles; To cover a Dome by the first Method; To cover a Dome by the second Method; To ascertain the Outline of a Course of covering to a Dome, without reference to a Section of the Dome; To describe a Pattern for a Tapering Square Article; A Square Tapering Article to be in two Sectione A Tapering Article, the Base to be Square, and the Top a Circle, in two Sections; A Tapering Article, the Base to be a Rectangle, and the Top Square, in two Sections; A Tapering Article, the Base to be a Rectangle, and the Top a Circle, in two Sections; A Tapering Article, the Top and Base to be a Rectangle, in two Sections; Tapering Octagan Top or Cover; A Mitre Joint at Right Angles for a Semicircle Gutter; A Mitre Joint at any Angle for a Semicircle Gutter; A Mitre Joint for an O G Gutter at Right Angles; A Mitre Joint for an O G Cornice at Right Angles, also an Offset; An OctagonO G Lamp Top or Cover; A T Pipe at Right Angles; AT Pipe at any Angle; A T Pipe, the Collar to be smaller than the Main Pipe; A T Pipe at any Angle, the Collar to set on one side of the Main Pipe; A Pipe to fit a flat Surface at any Angle, as the Side of a Roof of a Building; A Pipe to fit two flat Surfaces, as the Roof of a Building: An Elbow at Right Angles; An Elbow Pattern at any Angle; An Elbow in three Sections; An Elbow in four Sections; An Elbow in five Sections; A Tapering Elbow; An Oval Boiler Cover; A Flange for a Pipe that goes on the Roof of a Building; Octagon or Square Top or Cover; Steamer Cover; An Ellipse or Oval, having two Diameters given; An Ellipse with the Rule and Compasses, the Transverse and Conjugate Diameters being given, that is, the Length and Width; To find the Centre and the two Ares of an Ellipse; To find the Radius and Versed Sine for a given Frustrum of a Cone; Practical Geometry; Decimal Equivalents to Fractional Parts of Lineal Measurement; Definitions of Arithmetical Signs; Mensuration of Surfaces; Mensuration of Solids and Capacities of Bodies; Tables of Weights of Iron, Copper, and Lead; Tables of the Circumferences and Areas of Circles; Sizes and Capacity of Tinware in form of Frustrum of a Cone, such as Pans, Dish Kettles, Pails, Coffee-pots, Wash Bowls, Dippers, Measures, Druggists' and Liquor Dealers' Measures; American Lap Welded Iron Boiler Flues; Table of Effects upon Bodies by Heat; Weight of Water; Effects produced by Water in an Aeriform state; Practical Properties of Water; Effects produced by Water in its Natural State; Effects of Heat at certain Temperatures; Tempering; Effects produced by Air in its Natural and in a Rarefied State; Table of the Expansion of Atmospheric Air by Heat; Size, Length, Breadth, and Weight of Tin Plates; Crystallized Tin Plate; List of Calibre and Weights of Lead Pipe; Calibre and Weights of Fountain or Aqueduct Pipes; To ascertain the Weights of Pipes of various Metals, and any Diameter required; Weight of a Square Foot of Sheet Iron, Copper, and Brass, as per Birmingham Wire Gauge; Recapitulation of Weights of Various Substances. Practical Receipts.-Japanning and Varnishing; Varnishes; Miscellaneous; Lackers; Cements; Miscellaneous Receipts; Britannia; Solders, etc.; Strength of Materials.

Booth.-Marble Worker's Manual:

Containing Practical Information respecting Marbles in general, their Cutting, Working, and Polishing; Veneering of Marble; Mosaics; Composition and Use of Artificial Marble, Stuccos, Cements, Receipts, Secrets, etc. etc. Translated from the French by M. L. BOOTH. With an Appendix concerning American Marbles. 12mo., cloth

$1.50 CONTENTS.-Alabaster; American Marbles; Artificial Marble and Stuccos; Atelier of the Marble Worker; Breccias; Universal Cement; Chimney-piece in Malachite; Chinese Paintings, unalterable; Coloring of Marbles and Artificial Marbles; Crab Crane

Defects in Marbles; Designs; Varieties of Marbles; Figures in relief; Granite; Imitation of Marbles and Mosaics; Jack-screw; Jasper; Lapis; Mastics; Marbles in general; Ancient method of Painting Marbles. MARBLES-Coloring, Cleansing, Cutting, Working, Polishing, defects of; Different Varieties of; Modern; Machinery for raising; Machinery for Sawing and Moulding; Machinery for Sculpturing or reducing; Manner of Working Toy; Manufacture; Ornamental Working, workmanship of; Turned Marble; Veneering Marble. MOSAICS by absorption, imitations of; Ornamental Marble work; Porphyries and Granites; Pozzolana; Pumice Stone; Quartz; Various Recipes; The Sculpture; Sculpture by Acids; Serpentine; Setting up of Works; Composition of Slabs of Marble; Casting of Slabs; Tannage of Slabs; Stuccos and Artificial Marbles; Mouldings in Stuccos; Picture in Stuccos; Tackle. ZENACES-Venetian; Preparation of Area: Working of Marble for; Venetian less costly; Veneering upon Marble, Wood, and Stone; Vocabulary; Winch.

Booth and Morfit.-The Encyclopedia of Chemistry, Practical and Theoretical: Embracing its application to the Arts, Metallurgy, Mineralogy, Geology, Medicine, and Pharmacy. By JAMES C. BOOTH, Melter and Refiner in the United States Mint, Professor of Applied Chemistry in the Franklin Institute, etc., assisted by CAMPBELL MORFIT, author of "Chemical Manipulations," etc. Seventh edition. Complete in one volume, royal 8vo., 978 pages, with numerous wood-cuts and other illustrations $5.00

Bowditch.-Analysis, Technica! Valuation, Purification, and Use of Coal Gas:

By Rev. W. R. BOWDITCH. Illustrated with wood engravings. 8vo.

Box.-Practical Hydraulics:

$6.50

A Series of Rules and Tables for the use of Engineers, etc. By THOMAS Box. 12mo.

Box.-A Practical Treatise on Heat:

$2.50

As Applied to the Useful Arts; for the Use of Engineers, Architects, etc. By THOMAS BOX, author of "Practical IIydraulics." Illustrated by 14 plates containing 114 figures. 12mo. $425

CONTENTS.-CHAP. I.-GENERAL PRINCIPLES AND FACTS IN THE THEORY OF HEAT. Unit of Heat; Specific Heat of Solids, &c.; Specific Heat of Air; Latent Heat of Liquefaction; Latent leat of Vaporization; Boiling point of Liquids; Expansion of Solids, &c.; Expansion of Liquids; Expansion of Gases, &c.; Expansion of Moist Air; Thermometers; Frigorific Mixtures; Temperature of the Globe, &c.

CHAP. II.-ON COMBUSTION. Chemical Composition of Combustibles; Heat evolved in Combustion by Theory; Heat evolved in Combustion by direct Experiment; Air required for Combustion; Products of Combustion; Mode of Giving out Heat usefully; Combustion in Brick Furnaces; Temperature of the Air as it leaves the Fire; Radiating Power of Combustibles; Combustion in Steam-boilers; Temperature in different Parts of Flue; Distribution of the Heat in a Pound of Coal; Relative effect of Long and Short Boilers; Effect of Forcing the Fire; Effect of too much Air; Effect of too little Air; Proper Regulation of the Fire.

CHAP. III.-ON STEAM-BOILERS. Heating Surface, effective; Horse-power of Boilers; Furnaces and Consumption of Fuel; Fire-bars, &c. &c.; Steam-chests; Safetyvalves; Dampers; Arrangement of Flues; Strength of Boilers for Internal Pressure; Strength of Boilers for External Pressure; Strength of Boilers for Elliptical Tubes.

CHAP. IV. ON THE EFFLUX OF AIR, &c. Analogy of Efflux of Water, &c.; Velocity of Air, Steam, and Gas into a Vacuum; Velocity into Air; Coefficients of Contraction; Discharge of Steam into the Atmosphere; Friction of Air, &c., in Long Pipes; Square and Rectangular Channels; Effect of Repeated Enlargements and Contractions; Steampipes to Engines.

CHAP. V.-ON CHIMNEYS. Chimneys to Steam-boilers; Round Chimneys; Square Chimneys; Effect of Long and Short Flues.

CHAP. VI.-ON VAPOR. Density and Weight of Vapor; Mixtures of Air and Vapor.

CHAP. VII. ON EVAPORATION. Evaporation in Open Air, &c.; Evaporation at High Temperatures; Refrigerators for Breweries, &c.; Evaporating Pans; Evaporation at Boiling Point; Condensation Reservoirs to Engines; Cold Produced by Evaporation; Dryness of Air, increased by Heat; Evaporation Vessel for Stoves; Evaporation by Current of Air.

CHAP. VIII-ON DISTILLATION. Principle of the Process; Proportions of Appara tus; Condensing Apparatus.

CHAP. IX.-ON DRYING.

Drying in Open Air; Drying by Heated Air; Proper Position of Outlet Openings, &c.; Drying Closet for Linen, &c.; Size of, for Schools, Asylums, &c.

CHAP. X.-ON HEATING LIQUIDS. Heating Liquids by Fire Direct; Heating Liquids by Steam in Cased Vessel; Heating Liquids by a Worm; Heating Liquids by Vertical Tubes; Heating Liquids by Steam Direct.

CHAP. XI. ON HEATING AIR. Heating Air by Stoves, &c.; Effect of Stove-pipes, Sheet-iron; Effect of Stove-pipes, Cast-iron; Effect of Stove-pipes, Earthenware; Horizontal Flues; Height of Chimney for Stoves; Heating Air by Steam-pipes; Heating Air by Enclosed Steam-pipes; Air Cocks; Apparatus for Condensed Water; Supply of Water to Boiler, &c.; Expansion of Pipes by Heat; Heating Air by Hot-Water Pipes; Position of the Fire in Hot-Water Apparatus; Velocity of Current necessary; Circulation with the Fire Above the Pipes.

Loss of

CHAP. XII.-ON THE TRANSMISSION OF HEAT AND LAWS OF COOLING. Heat by Radiation; Loss of Heat by Contact of Air; Loss of Heat by Conduction; Loss of Heat by Buildings; Loss of Heat by Ceiling and Ground; Loss of Heat by the Walls; Loss of Heat by Glass in Windows; Loss of Heat by Glass Houses, &c.; Phenomena of Heated Rooms, &c.

CHAP. XIII-LAWS OF COOLING AT HIGH TEMPERATURES. Loss by Radiation, Dulong's Formula; Loss by Contact of Air; Loss by Steam-Pipes; Loss by Enclosed Steam-pipes; Loss by Polished Metal and other Surfaces; Loss by Thick Cast-iron Pipes, &c.; Loss by Steam-pipes cased in bad Conductors.

CHAP. XIV.-ON THE TRANSMISSION OF HEAT BY CONDUCTION. Law of Cauchy, &c.; Transmission by Water.

CHAP. XV.-ON VENTILATION, &c. Air required for Respiration, &c.; Heat produced by Respiration; Modes of effecting Ventilation; Summer and Winter Ventilation; Natural Ventilation; Mechanical Ventilation; Heating and Ventilation of Schools; Heating and Ventilation of Chapels; Heating and Ventilation of Hospitals. CHAP. XVI.-EXAMPLES OF HEATING AND VENTILATION. Prison Mazas; Prison Provins; Church of St. Roch, particulars of; Church of St. Roch, Temperature of Wall, &c.; Church of St. Roch, Volume of Air; Church of St. Roch, Time to Heat the Building; Church of St. Roch, Time to Cool the Building; Church of St. Roch, Heating Apparatus, &c.

CHAP. XVII.-ON WIND, AND ITS EFFECTS ON VENTILATION, &c. &o. Principle of the Influence of Wind; Force and Velocity of Wind; Cowl for Chimneys; Form of Vane for Chimneys; Stability of Buildings in Storms.

Buckmaster.-The Elements of Mechanical Physics:

By J. C. BUCKMASTER, late Student in the Government School of Mines; Certified Teacher of Science by the Department of Science and Art; Examiner in Chemistry and Physics in the Royal College of Preceptors; and late Lecturer in Chemistry and Physics of the Royal Polytechnic Institute. Illustrated with numerous engravings. In one vol., 12mo. $1.50 CONTENTS. The Elements of Mechanical Physics. CHAP. I.-Statics and Dynamics; Force; Gravitation and Weight: On Matter-its Mass, Density, and Volume. II.Centre of Gravity; Stable and Unstable Equilibrium; To find the Centre of Gravity of > Material Straight Line of Uniform Density; To find the Centre of Gravity of two

heavy Points joined by a rigid bar without Weight; To find the Centre of Gravity of a number of heavy points; To find the Centre of Gravity of a Material Plain Triangle. III.-Levers; Levers are of three kinds; Virtual Velocity; Balances; The Safety Valve; Mechanical Combinations and their Advantages. IV.-The Wheel and Axle; The Compound Wheel and Axle. V.-The Pulley; Wheels and Pinions; Cranks and Fly-Wheel. VI.-The Inclined Plane; The Wedge; The Screw. VII.-Composition and Resolution of Forces. VIII.-Falling Bodies; Ascent of Bodies; Projection of Bodies Horizontally. IX.-Momentum. X-Sound; The Pendulum.

Elements of Hydrostatics.-CHAP. I.-Hydrostatics; Bramah Hydrostatic Press. II.-Specific Gravity; Table of Specific Gravities. III.-Elastic Fluids; The Air Pump and its Operation; The Construction of the Condenser and its Operation; The Barometer; The Action of the Siphon; How to Graduate a common Thermometer; To Reduce the Degrees of a Thermometer in Fahrenheit's scale to a centigrade and the converse; The Construction of a Siphon gauge; The Construction of a common Pump and its Operation; The Construction and Operation of a Force Pump; The Operation of a Fire Engine; The Operation of a Lifting Pump; The Hydraulic Ram; The Archimedian Screw; The Chain Pump; Mercurial Steam Gauge; Examination Papers. APPENDIX.-Examples; Answers to Examples.

Bullock.-The American Cottage Builder:

for

A Series of Designs, Plans, and Specifications, from $200 to $20,000, Homes for the People; together with Warming, Ventilation, Drainage, Painting, and Landscape Gardening. By JOHN BULLOCK, Architect, Civil Engineer, Mechanician, and Editor of "The Rudiments of Architecture and Building," etc. etc. Illustrated by 75 engravings. In one vol. 8vo.

$3.50 CONTENTS Chap. I.-Generally. Where to build a cottage-Bird cottage-Objects Desired. II.-The Various Parts.-Walls-Cob walls-Mud walls-Silverlock's hollow walls-Dearnes' hollow brick walls-Loudon's hollow brick walls-Flint built walls-Walls of framed timber, rubble, and plaster-Walls of hollow bricks-Covering for external walls-Inside work-Floors-Lime-ash floors-Concrete floors-Plaster floor-Asphalte-Floor of hollow pots-Tile floor-Floors of arched brickwork in mortar-Fireproof floor-Tile-trimmer-Girder floor-Stairs formed of tile-Roofs-Thatch -Tile for roofing-Slate roof-Cast-iron roofing-Eaves-gutter-Chimney-shaft-Ventilation and warming. III.-Terra del Fuego Cottage. IV.-Prairie Cottage-Cottage of unburnt brick, plan-Cross section-Side view-Manner of laying the brick and the foundation-Chimney-cap, perspective, and top views. The Farm Cottage-Ground floor-Attic floor. VI.The Village Cottage. VII.-Italian Cottage. VIIIThatched Cottage. IX.-Cottage of the Society for Improving the Condition of the Poor. X.-Warming and Ventilation-Ventilation. XI.-Model Cottage-Hollow brickwork. XII.-Rural Cottage-Basement plan-Plan of the first floor-Plan of the second floor. XIII.-Octagon Cottage-Plan of basement-Plan of principal story. XIV.-Drainage. XV.-Rural Homes-Circumstances to be taken into consideration in the choice of a situation-Elevation-The character of the surface on which to buildAspect Soil and subsoil-Water-Villa-Rural home, No. 1-Views of a suburban residence in the English style-Rural home, No. 2-Rural home, No. 3-Rural home, No. 4. XVI.-Paint and Color. XVII.-Suburban Residences-Gothic suburban cottage of C. Prescott, Esq., Troy, N. Y.-Basement-First floor-Attic-Second floor; Suburban octagonal cottage. XVIII.-Landscape Gardening-First steps in forming a landscape garden-The roads and paths-Trees, shrubs, and planting-Hills and mounds-Valleys and low grounds-Rockwork-Of water, and its appropriation or adop tion-Fountains-General observations-Formal gardening-Pleasure grounds and flower gardens-The flower garden-The greenhouse-The conservatory. XIX. — Cost -The Terra del Fuegan cottage-The prairie cottage-The village cottage-The Ita lian cottage-The thatched cottage-The cottage of the Society for Improving the Condition of the Poor-Prince Albert's model cottage-The rural cottage-Mr. Fowler's octagonal cottage-Rural home, No. 1-Rural home, No. 2-Rural home, No. 3-The suburban residence-The octagonal suburban residence designed by Wilcox-The Byzantine cottage The Gothic suburban residence designed by Mr. Davis. XX.-Two Residences-The Byzantine cottage-Ground plan-Plan of second story-The Gothic suburban residence of W. H. C. Waddell, Esq., New York-First floor-Second floor. XXI.-Artist's and Artisan's Calling.

Bullock.-The Rudiments of Architecture

and Building:

For the use of Architects, Builders, Draughtsmen, Machinists, Engineers, and Mechanics. Edited by JonN BULLOCK, author of “The American Cottage Builder." Illustrated by 250 Engravings. In one volume 8vo.

$3.50 CONTENTS. BOOK I. THE ORDERS.-Doric Order-Modern Doric-Tuscan OrderIonic Order-Ionic Antæ-Ionic Entablature-Roman and Modern Doric-Entablature -Corinthian Order-Composite Order-Columniation-Intercolumniation.

BOOK II. Sketches of the History and Description of the Styles of Architecture of Various Countries from the Earliest to the Present Time. CHAP. I. Architecture of Various Countries-Nineveh, Babylon, and Egypt. II. Grecian Architecture. III. Roman Architecture. IV. Byzantine and Romanesque. V. The Architecture of Germany, France, and Normandy. VI. Syrian, Persian, and Persepolitan Architecture. VII. The Ancient Architecture of India. VIII. Chinese Architecture. IX. Arabian, Saracenic, or Moorish Architecture. X. Druidical, Celtic, and Anglo-Roman Architecture. XI. Architecture of England.

BOOK III. CHAP. I. Definition of Architecture-Its Necessity, Uses, and Requirements. II. Ocular and Formal Beauty-First Generalization thereon-Unity and Variety-Graduation and Contrast. III. Different Kinds of Beauty, of Sublimity, and of Picturesqueness-their Characteristics. IV. Imitation of Nature and of Models— False Imitation-Constructive Truth-Constructive Unity-Three Systems thereof. V. Application of the foregoing Principles to Trabeated or Beamed Building by the Grecian Architects. VI. Application of the same Principles to Compressile Building by the Mediaval Architects-Of Arch or Vault Work as the fundamental principle of the Gothic system-On the General Plans-Post Gothic Architecture-Concluding Remarks Ancient Monuments of Greece-Glossary.

RUDIMENTS OF THE ART OF BUILDING. SECTION I. General Principles of Construction. Foundations-Natural Foundations -Artificial Foundations - Foundations in Water-Foundations formed wholly of Piles-Solid Foundations simply laid on the surface of the Ground-Pierre Perdue-Coursed Masonry-Beton-Caissons-Solid Foundations laid in Cofferdams-Beton-Pile-driving-Cofferdams-Retaining Walls -Amount and Direction of the Thrust-Calculation of Minimum Thrust-Resistance of the Wall-Counterforts-Breast Walls-Arches-Brick Arches-Skew Arches-Centering-Abutments-Wing Walls-Vaulting-Masonry; Brickwork;_Bond-Uniformity of Construction-Bond-Distribution of the Load-Partitions-Floors-Roofing -Trussed Roofs, exerting no Side Thrust on the Walls-Roofs on the Principle of the Arch-Gothic Roofs-Roof Coverings-Tiles-Metallic Coverings-Supply of WaterWarming and Ventilation-Methods of Warming independently of Ventilation-Methods of Warming combined with Ventilation. II. Materials used in Building. LumberDecay of Lumber-Prevention of Decay. Limes and Cement. Mortar, etc.-Pure Limes-Water Limes-Dorking Lime-Blue Lias Limes-Water Cements-Concrete and Beton. Metals. Iron-Cast Iron-Lead--Cast Lead-Copper-Zinc-Brass-Bronzo Bell Metal. Stone Slate Sandstones-Limestones-Slate - Glass-Bricks and Tiles. III. Strength of Materials. Resistance to Compression-Resistance to Tension -Strength of Beams-Cross Strain-Mechanical Effect of a given Load under varying Circumstances-Resistance of the Beam--Trussed Timber Beams-Strength of Story-posts and Cast-iron Pillars. IV. Use of Materials. Excavator-BricklayerMason-Carpenter-Joiner-Slater-Table of Sizes of Roofing Slates-Slates-Plasterer-Memoranda-Smith and Iron-founder-Plumber-Table of the Weight of Lead Pipes per yard-Zine Worker-Glazier-Painter. Paperhanger, and DecoratorDrainage-Paints. V. Making Drawings, Specifications, Estimates, and Contracts. Plan of Site-Levels-Working Drawings-Block Plans-General Drawings-Detailed Drawings-Specification-Conditions of Contract-The Description of the Works-Bills of

Quantities.

APPENDIX. Woods of North America Weight of Stone-Weight of TimberWages-Weight of Earth-Tiling-Mortar