JAMES C. PLANT

Superintendent of Computing Division, Office of Supervising Architect, Treasury, Washington, D. C.

WALTER LORING WEBB, C. E.

Consulting Civil Engineer

Author of "Railroad Construction," "Economics of Railroad Construction," etc.

J. R. COOLIDGE, Jr., A. M.

Architect, Boston

President, Boston Society of Architects

Acting Director, Museum of Fine Arts, Boston

H. V. von HOLST, A. B., S. B.

Architect, Chicago

President, Chicago Architectural Club

FRED T. HODGSON

Architect and Editor

Member, Ontario Association of Architects

Author of "Modern Carpentry," "Architectural Drawing, Self-Taught." "The Steel Square," "Modern Estimator," etc.

GLENN M. HOBBS, Ph. D.

Secretary, American School of Correspondence

FRANK O. DUFOUR, C. E.

Assistant Professor of Structural Engineering, University of Illinois American Society of Civil Engineers

SIDNEY T. STRICKLAND, S. B.

Massachusetts Institute of Technology Ecole des Beaux Arts, Paris

WM. H. LAWRENCE, S. B.

Professor of Architectural Engineering. Massachusetts Institute of Technology

Authors and Collaborators - Continued

EDWARD NICHOLS

Architect, Boston

H. W. GARDNER, S. B.

Associate Professor of Architecture, Massachusetts Institute of Technology

JESSIE M. SHEPHERD, A. B.

Associate Editor, Textbook Department, American School of Correspondence

GEORGE C. SHAAD, E. E.

Professor of Electrical Engineering, University of Kansas

MORRIS WILLIAMS

Writer and Expert on Carpentry and Building

HERBERT E. EVERETT

Professor of the History of Art, University of Pennsylvania

ERNEST L. WALLACE, B. S.

Assistant Examiner, United States Patent Office, Washington, D. C.

Formerly Instructor in Electrical Engineering, American School of Correspondence

OTIS W. RICHARDSON, LL. B.

Of the Boston Bar

WM. G. SNOW, S. B.

Steam Heating Specialist

Author of 'Furnace Heating." Joint Author of "Ventilation of Buildings"

American Society of Mechanical Engineers

W. HERBERT GIBSON, B. S., C. E.

Civil Engineer and Designer of Reinforced Concrete

ELIOT N. JONES, LL. B.

Of the Boston Bar

Authors and Collaborators - Continued

R. T. MILLER, Jr., A. M., LL. B.

President, American School of Correspondence

WM. NEUBECKER

Instructor, Sheet Metal Department of New York Trade School

WM. BEALL GRAY

Sanitary Engineer

Member, National Association of Master Plumbers

EDWARD MAURER, B. C. E.

Professor of Mechanics, University of Wisconsin

EDWARD A. TUCKER, S. B.

Architectural Engineer

Member, American Society of Civil Engineers

EDWARD B. WAITE

Head of Instruction Department. American School of Correspondence American Society of Mechanical Engineers Western Society of Engineers

ALVAH HORTON SABIN, M. S.

Lecturer in New York University

Author of "Technology of Paint and Varnish," etc.

American Society of Mechanical Engineers

GEORGE R. METCALFE, M. E.

Editor, American Institute of Electrical Engineers

Formerly Head, Technical Publication Department, Westinghouse Electric & Manufacturing Co.

HENRY M. HYDE

Editor "Technical World Magazine"

CHAS. L. HUBBARD, S. B., M. E.

Consulting Engineer on Heating, Ventilating, Lighting, and Power Formerly with S. Homer Woodbridge Co.

Authors and Collaborators - Continued

FRANK CHOUTEAU BROWN

Architect, Boston

Author of " Letters and Lettering"

DAVID A. GREGG

Teacher and Lecturer in Pen and Ink Rendering, Massachusetts Institute of Technology

CHAS. B. BALL

Chief Sanitary Inspector, City of Chicago American Society of Civil Engineers

ERVIN KENISON, S. B.

Assistant Professor of Mechanical Drawing, Massachusetts Institute of Technology

CHAS. E. KNOX, E. E.

Consulting Electrical Engineer

American Institute of Electrical Engineers

JOHN H. JALLINGS

Mechanical Engineer

FRANK A. BOURNE, S. M., A. A. I. A.

Architect, Boston

Special Librarian, Department of Fine Arts, Public Library Boston

ALFRED S. JOHNSON, Ph. D.

Formerly Editor "Technical World Magazine"

GILBERT TOWNSEND, S. B.

With Ross & McFarlane, Montreal

HARRIS C. TROW, S. B., Managing Editor

Editor-in-Chief, Textbook Department, American School of Correspondence

Authorities Consulted

THE editors have freely consulted the standard technical literature of America and Europe in the preparation of these volumes. They desire to express their indebtedness particularly to the following eminent authorities whose well-known works should be in the library of everyone connected with building.

Grateful acknowledgment is here made also for the invaluable cooperation of the foremost architects, engineers, and builders in making these volumes thoroughly representative of the very best and latest practice in the design and construction of buildings; also for the valuable drawings and data, suggestions, criticisms, and other courtesies.

J. B. JOHNSON, C. E.

Formerly Dean, College of Mechanics and Engineering, University of Wisconsin Author of "Engineering Contracts and Specifications," "Materials of Construction," Joint Author of "Theory and Practice;in the Designing of Modern Framed Structures"

JOHN CASSAN WAIT, M. C. E., LL. B.

Counselor-at-Law and Consulting Engineer: Formerly Assistant Professor of Engineering at Harvard University Author of "Engineering and Architectural Jurisprudence"

T. M. CLARK

Fellow of the American Institute of Architects

Author of "Building Superintendence," "Architect, Builder, and Owner before the Law"

FRANK E. KIDDER, C. E., Ph. D.

Consulting Architect and Structural Engineer; Fellow of the American Institute of

Architects Author of "Architects' and Builders' Pocket-Pook;" "Building Construction and

Superintendence; Part I, Masons' Work; Part II, Carpenters' Work; Part III,

Trussed Roofs and Roof Trusses; " "Churches and Chapels"

AUSTIN T. BYRNE, C. E.

Civil Engineer

Author of "Inspection of Materials and Workmanship Employed in Construction," "Highway Construction"

W. R. WARE

Formerly Professor of Architecture, Columbia University Author of "Modern Perspective"

Authorities Consulted - Continued

CLARENCE A. MARTIN

Professor of Architecture at Cornell University Author of "Details of Building Construction"

FRANK N. SNYDER

Architect

Author of "Building Details"

CHARLES H. SNOW

Author of "The Principal Species of Wood, Their Characteristic Properties"

OWEN B. MAGINNIS

Author of "How to Frame a House, or House and Roof Framing '

HALBERT P. GILLETTE, C. E.

Author of "Handbook of Cost Data for Contractors and Engineers"

OLIVER COLEMAN

Author of "Successful Houses"

CHAS. E. GREENE, A. M., C. E.

Formerly Professor of Civil Engineering, University of Michigan Author of "Structural Mechanics"

LOUIS de C. BERG

Author of "Safe Building"

GAETANO LANZA, S. B., C. & M. E.

Professor of Theoretical and Applied Mechanics, Massachusetts Institute of Technology Author of "Applied Mechanics"

IRA O. BAKER

Professor of Civil Engineering, University of Illinois Author of "A Treatise on Masonry Construction"

GEORGE P. MERRILL

Author of "Stones for Building and Decoration"

FREDERICK W.TAYLOR, M. E. and SANFORD E.THOMPSON, S. B., C.E.

Joint Authors of "A Treatise on Concrete, Plain and Reinforced"

Authorities Consulted - Continued

A. W. BUEL and C. S. HILL

Joint Authors of " Reinforced Concrete"

NEWTON HARRISON, E. E.

Author of "Electric Wiring, Diagrams and Switchboards"

FRANCIS B. CROCKER, E. M., Ph. D.

Head of Department of Electrical Engineering, Columbia University; Past President,

American Institute of Electrical Engineers Author of " Electric Lighting"

J. R. CRAVATH and V. R. LANSINGH

Joint Authors of " Practical Illumination"

JOSEPH KENDALL FREITAG, B. S., C. E.

Authors of "Architectural Engineering," " Fireproofing of Steel Buildings"

WILLIAM H. BIRKMIRE, C. E.

Author of " Planning and Construction of High Office Buildings," "Architectural Iron and Steel, and Its Application in the Construction of Buildings," "Compound Riveted Girders," "Skeleton Structures," etc.

EVERETT U. CROSBY and HENRY A. FISKE

Joint Authors of " Handbook of Fire Protection for Improved Risk"

CARNEGIE STEEL COMPANY

Authors of "Pocket Companion, Containing Useful Information and Tables Appertaining to the Use of Steel"

J. C. TRAUTWINE, C. E.

Author of "Civil Engineer's Pocket-Book"

ALPHA PIERCE JAMISON, M. E.

Assistant Professor of Mechanical Drawing, Purdue University Author of "Advanced Mechanical Drawing"

FRANK CHOUTEAU BROWN

Architect. Boston

Author of " Letters and Lettering"

Authorities Consulted - Continued

HENRY McGOODWIN

Author of "Architectural Shades and Shadows"

VIGNOLA

Author of "The Five Orders of Architecture," American Edition by Prof. Ware

CHAS. D. MAGINNIS

Author of "Pen Drawing, An Illustrated Treatise"

FRANZ S. MEYER

Professor in the School of Industrial Art, Karlsruhe Author of "Handbook of Ornament," American Edition

RUSSELL STURGIS

Author of "A Dictionary of Architecture and Building," and "How to Judge Architecture"

A. D. F. HAMLIN, A. M.

Professor of Architecture at Columbia University Author of "A Textbook of the History of Architecture

RALPH ADAMS CRAM

Architect

Author of "Church Building"

C. H. MOORE

Author of " Development and Character of Gothic Architecture"

ROLLA C. CARPENTER, C. E., M. M. E.

Professor of Experimental Engineering, Cornell University Author of " Heating and Ventilating Buildings"

WILLIAM PAUL GERHARD

Author of "A Guide to Sanitary House Inspection"

I. J. COSGROVE

Author of " Principles and Practice of Plumbing"