MEMBERSHIP DIRECTORY

HONORARY MEMBERS.

Brigadier General JAMES ALLEN, U.S.A. (Retired), Army and Navy Club, Washington, D. C. Col. GEORGE L. ANDERSON, E. E., U. S. A., 975 Hamilton Avenue, Palo Alto, California. Prof. ARTHUR BEARDSLEY, Swarthmore, Pennsylvania.

Prof. CHARLES F. CHANDLER, Columbia University, New York City, New York.

Prof. GEORGE FORBES, No. 11 Little College Street, Westminster, S. W., London, England. Dr. FRANCIS FOWLER, Washington, D.C.

Dr. CHARLES F. HIMES, Carlisle, Pennsylvania.

Dr. T. C. MENDENHALL, Ravenna, Ohio.

Rear Admiral JOSEPH B. MURDOCK, U. S. N., Danbury, New Hampshire.

Mr. RALPH W. POPE, 570 Cherry Street, Elizabeth, New Jersey.

Prof. H. TRESCA, Conservatoire des Arts and Metiers, Paris, France.

Lt.-Col. THEO. TURRETTINI, Geneva, Switzerland.

Prof. WM. CAWTHORNE UNWIN, Palace Gate Mansions, Kensington, London, England.

Dr. GEORGE M. WARD, New York City, New York.

Dr. H. W. WILEY, Room 1120, Woodward Building, Washington, D. C.

Lieut. A. B. WYCKOFF, 131 East H Street, Ontario, California.

CORRESPONDING MEMBER.

Mr. T. COMMERFORD MARTIN, 29 West 39th Street, New York City, New York.

PERMANENT MEMBER.

Mr. ANDREW CARNEGIE, 91st Street and Fifth Avenue, New York City, New York.

Mr. ISAAC B. THORN.

"IN MEMORIAM."

MEMBERS.

ABBOTT, LYLE STOCKTON, Civil Engineer, 300 Willow Avenue, River Edge, New Jersey. ABBOTT, ROBERT R., Metallurgical Engineer, The Peerless Motor Car Company, Cleveland, Ohio.

ABEL, CHARLES, Painting and Paper Hanging, 300 Fifth Avenue, Haddon Heights, New Jersey.

ACHESON, EDWARD G., Manufacturer, Acheson Corporation, Æolian Building, 35 West 42d Street, New York City, New York.

ADAMS, DANIEL, Lumber Merchant, 2934 North Marshall Street, Philadelphia, Pennsyl

vania.

ADDICKS, WALTER R., Vice President, Consolidated Gas Company of New York, 130 East 15th Street, New York City, New York.

ADSIT, CHARLES G., Engineer, Ponce de Leon Apartments, Atlanta, Georgia.

AKELEY, CARL E., Taxidermist and Sculptor, American Museum of Natural History, 77th Street and Central Park West, New York City, New York.

AKIMOFF, NICHOLAS W., Mechanical and Hydraulic Engineer, 1013 Harrison Building, Philadelphia, Pennsylvania.

ALBERTSON, W. H., Builder. 334 North Preston Street, Philadelphia, Pennsylvania.

ALBRECHT, A. C., Secretary, North Brothers Manufacturing Company, Lehigh Avenue and American Street, Philadelphia, Pennsylvania.

ALLAN, ANDREW, JR., Manufacturer of Bearing Metals, 486 Greenwich Street, New York City, New York.

ALLEMAN, GELLERT, Professor of Chemistry, Swarthmore College, and for mail, 8 Whittier

Place, Swarthmore, Pennsylvania.

ALLEN, C. W., 523 Oley Street, Reading, Pennsylvania.

ALLEN, FRANK S., Boiler Inspector, 48 Fairfield Avenue, Hartford, Connecticut.

ALLEN, HENRY B., Metallurgical Engineer, Henry Disston & Sons, Tacony, Philadelphia, Pennsylvania.

ALLEN, JAMES, Brigadier General, U.S.A. (Retired), Army and Navy Club, Washington, D.C. ALLEN, WILLIAM E., Clerk, 1211 Clover Street, Philadelphia, Pennsylvania.

ALLEN, WILLIAM N., Retired Chemical Manufacturer, Peermont, New Jersey.

ALLIGER, WILLIAM T., Chemical Engineer, Harrison Safety Boiler Works, 17th Street and Allegheny Avenue, Philadelphia, Pennsylvania.

ALSBERG, CARL L., Chief, Bureau of Chemistry, U. S. Department of Agriculture, Washington, D. C.

ANDERSON, FRANK, Mining Engineer, 468 12th-East Street, Salt Lake City, Utah. ANDERSON, Colonel GEORGE L., Electrical Engineer, U. S. A., 975 Hamilton Avenue, Palo Alto, California.

ANDERSON, ROBERT J., Assistant to Professor Henry M. Howe, Bedford Hill, New York, and for mail, Katonah, N. Y.

ANDREWS, W. S., Consulting Electrical Engineer, Generai Electric Company, Schenectady, New York.

ANGERER, VICTOR, Vice President, Taylor-Wharton Iron and Steel Company, and for mail, P. O. Box 162, Ridley Park, Pennsylvania.

ARMSTRONG, WILLIAM R., Clerk, Powers-Weightman-Rosengarten Company, Philadel phia, Pennsylvania.

ARNY, H. V., Professor of Chemistry, College of Pharmacy, Columbia University, 115 West 68th Street, New York City, New York.

ASBURY, CHARLES W., Vice President, Enterprise Manufacturing Company of Pennsylvania, Third and Dauphin Streets, Philadelphia, Pennsylvania.

ASEF, WALDEMAR, Chemist, 4812-B Sansom Street, Philadelphia, Pennsylvania.
ASHBROOK, DONALD S., Chemist. 2404 Willard Street, Wilmington, Delaware.
ASHHURST, JOHN, Librarian, The Free Library of Philadelphia, 13th and Locust Streets,
Philadelphia, Pennsylvania.

ASHMEAD, FRANK M., Civil Engineer, 445 Ashland Avenue, Buffalo, New York.
ATLEE, JOSHUA W., Naval Architect, Wm. Cramp and Sons Ship and Engine Building
Company, and for mail, Riverton, New Jersey.

ATLEE, WALTER, Civil Engineer, 2112-18th Street, Washington, D. C.

ATTERBURY, W. W., Vice President, Pennsylvania Railroad Company, Broad Street Station, Philadelphia, Pennsylvania.

ATWATER, RICHARD M., JR., Consulting Mining Engineer, Scarsdale, New York. AUCHY, GEORGE, Research Chemist, Henry Disston and Sons, Tacony, and for mail, 6932 Tulip Street, Tacony, Philadelphia, Pennsylvania.

AUDENRIED, LEWIS, Eddystone, Pennsylvania.

AUSTIN, W. L., Chairman of the Board, The Baldwin Locomotive Works, 500 North Broad Street, Philadelphia, Pennsylvania.

AYERS, EUGENE E., Sharples Specialty Company, West Chester, Pennsylvania.

BACKUS, CECIL F., Chemist, Main Office, Atlas Powder Company, Wilmington, Delaware. BACON, RAYMOND FOSS, Chemist, Director, Mellon Institute of Industrial Research.. University of Pittsburgh, Pittsburgh, Pennsylvania.

BAEKELAND, L. H., Research Chemist, Snug Rock, Harmony Park, Yonkers-on-Hudson, New York.

BAILY, JOSHUA L., Drygoods Commission Merchant, 1508 Walnut Street, Philadelphia, Pennsylvania.

BAIRD, CHARLES O., 207 Crozer Building, Philadelphia, Pennsylvania.

BAIRD, JOHN E., Real Estate Trust Building, Philadelphia, Pennsylvania.

BAIRD, THOMAS E., Villa Nova, Pennsylvania.

BAKER, FRANKLIN, JR., Manufacturer, Wayne Avenue and Hortter Street, Germantown
Philadelphia, Pennsylvania.

BAKER, GEORGE FALES, Physician, 403 Lafayette Building, Philadelphia, Pennsylvania.
BAKER, J. T., President, J. T. Baker Chemical Company, Phillipsburg, New Jersey.
BALCH, ALFRED C., Publisher, 227 South 6th Street, Philadelphia, Pennsylvania.
BALCH, EDWIN S., Attorney-at-Law, 1505 Spruce Street, Philadelphia, Pennsylvania.
BALDWIN, A. STUART, Chief Engineer, Illinois Central Railroad Company, Chicago, Illinois.
BALLARD, R. H., Secretary and Assistant Engineer, Southern California Edison Company,
Edison Building, Los Angeles, California.

BALLENTINE, WILLIAM I., care of the Chain Belt Company, Milwaukee, Wisconsin.
BALLINGER, WALTER F., Architect, N. W. Corner 17th and Arch Streets, Philadelphia.

Pennsylvania.

BALLS, WILLIAM H., Professor of Drawing, South Philadelphia High School, Broad and Jackson Streets, Philadelphia, Pennsylvania.

BALTIMORE, JEREMIAH D., Teacher in Manual Training School, and for mail, 1435 Street, N. W., Washington, D. C.

BANCROFT, JOHN, Manufacturer, Wilmington, Delaware.

BANCROFT, JOSEPH, Vice President and Treasurer, Joseph Bancroft and Sons, Wilmington, Delaware.

BANCROFT, J. SELLERS, General Manager, Lanston Monotype Machine Company, and for mail, 917 Pine Street, Philadelphia, Pennsylvania.

BANNISTER, J. C., Manager, National Tube Company, Kewanee, Illinois.

BARKER, WHARTON, Economist and Financier, Port Royal Avenue, Roxborough, Philadelphia, Pennsylvania.

BARNES, JAMES, Professor of Physics, Bryn Mawr College, Bryn Mawr, Pennsylvania. BARNES, JOHN HAMPTON, Lawyer, Morris Building, 1421 Chestnut Street, Philadelphia, Pennsylvania.

BARNETT, EDWIN S., Wheat Starch Manufacturer, Mount Alverno, Delaware County, Pennsylvania.

BARR, JOHN H., Mechanical Engineer, 327 Broadway, New York City, New York. BARRINGER, DANIEL MOREAU, Geologist and Mining Engineer, 370 Bullitt Building, Philadelphia, Pennsylvania.

BARTH, CARL G., Consulting Engineer, 6151 Columbia Avenue, Overbrook, Philadelphia, Pennsylvania.

BARTOL, GEORGE E., 220 The Bourse, Philadelphia, Pennsylvania.

BARTOL, H. W., Chateau de Ste. Helene, Nice, France.

BARTOW, EDWARD, Director, State Water Survey, University of Illinois, Urbana, Illinois. BARWIS, C. W., Civil Engineer, P. O. Box 286, Gallitzin, Pennsylvania.

BASFORD, G. M., President, Locomotive Feed Water Heater Company, 30 Church Street, New York City, New York.

BASKERVILLE, CHARLES, Professor of Chemistry, College of the City of New York, New York.

BATES, ONWARD, Civil Engineer, 332 South Michigan Avenue, Chicago, Illinois.

BAUGH, DANIEL, Manufacturer, 20 South Delaware Avenue, Philadelphia, Pennsylvania. BEACH, CHARLES S., Designer and Machinist, 745 Main Street, Bennington, Vermont. BEALE, HORACE A., JR., President, Parkesburg Iron Company, Parkesburg, Pennsylvania. BEARDSLEY, ARTHUR, Emeritus Professor of Engineering, Swarthmore College, Swarthmore, Pennsylvania.

BEATH, E. R., Lapidist and Jeweler, 129 South 12th Street, Philadelphia, Pennsylvania. BECK, M. A., Mechanical Engineer, 294 Greenbush Street, Milwaukee, Wisconsin.

BECKER, IRWIN A., Pharmacist, 29th Street and Groveland Avenue, care of Michael Reese Hospital, Chicago, Illinois.

BEEBER, DIMNER, Lawyer, 705 Land Title Building, Philadelphia, Pennsylvania.

BELFIELD, T. BROOM, Manufacturer, 1905 Spring Garden Street, Philadelphia, Pennsylvania.

BELL, J. SNOWDEN, Attorney-at-Law, P. O. Box 629, New York City, New York.
BEMENT, CLARENCE S., 3907 Spruce Street, Philadelphia, Pennsylvania.

BEMENT, WILLIAM P., Retired, 743 Real Estate Trust Building, Philadelphia, Pennsyl

vania.

BENNETT, CHARLES E., Electrical Engineer, care of Hugh L. Thompson, Consulting Engineer, Waterbury, Connecticut.

BENT, STEDMAN, General Eastern Sales Agent, Phoenix Iron Works Company, 2006 Finance Building, Philadelphia, Pennsylvania.

BENZON, GEORGE H., JR., Mechanical Engineer, 252 Mather Road, Jenkintown, Pennsylvania.

BERG, ERNST J., Professor of Electrical Engineering. Union College, Schenectady, New York. BERG, HOLGER V., Chemical Engineer, Newport, Delaware.

BERLINER, EMILE, Engineer, 1458 Columbia Road, Washington, D. C.

BERLINER, HERBERT S., Engineer, care of Berliner Gramaphone Company, Montreal,

Canada.

BERRESFORD, A. W., General Manager, The Cutler-Hammer Manufacturing Company, Mil

waukee, Wis.

BEST, W. N., Engineer in Caloric, II Broadway, New York City, New York.

BIDDLE, CHARLES M., JR., First Vice President, Supplee-Biddle Hardware Company, 517 Commerce Street, Philadelphia, Pennsylvania.

BIDDLE, ELIZABETH C., 400 South Fifteenth Street, Philadelphia, Pennsylvania.

BIDDLE, H. W., Stock Broker, 424 Chestnut Street, Philadelphia, Pennsylvania.

BIDDLE, JAMES C., JR., Catholic Priest, Abbey of Gethsemani, Trappist P. O., Kentucky.
BIDDLE, JAMES G., Importer of Scientific Apparatus, Wallingford, Pennsylvania.
BIDDLE, RICHARD, Wanderer's Rest, Sewanee, Tennessee.

BIDDLE, ROBERT, President, Biddle-Gaumer Company, 3846-56 Lancaster Avenue, Philadelphia, Pennsylvania.

BIDDLE, W. LYMAN, Banker, 428 Chestnut Street, Philadelphia, Pennsylvania.

BIERBAUM, CHRISTOPHER H., Consulting Engineer, 1011 Mutual Life Building. Buffalo, New York.

BIGELOW, S. LAWRENCE, Professor of General and Physical Chemistry, University of Michigan, Ann Arbor, Michigan.

BILGRAM, HUGO, Machinist, 1235 Spring Garden Street, Philadelphia, Pennsylvania. BILLINGS, A. W. K., Engineer, Vice President and Managing Director, Ebro Irrigation and Power Company, Limited, and Allied Companies, Barcelona, Spain.

BILLOW, CLAYTON O., Consulting Engineer, 1013 Ridge Avenue, Evanston, Illinois. BINDER, RICHARD L., President, K. & B. Company, Special Electrical Supplies, 25 North 7th Street, Philadelphia, Pennsylvania.

BINSWANGER, JACOB G., 1619 North 16th Street, Philadelphia, Pennsylvania. BIRKINBINE, CARL PETER, Engineer, Parkway Building, Philadelphia, Pennsylvania. BLACKMORE, HENRY SPENCER, Chemist and Patent Attorney, P. O. Box 145. Mount Vernon, New York.

BLAIR, A. A., Analytical Chemist, 406 Locust Street, Philadelphia, Pennsylvania. BLAKELEY, ABRAHAM G., Chief Chemist, Philadelphia and Reading Coal and Iron Company, Pottsville, Pennsylvania.

BLANCHARD, HARRIET, 1511 Walnut Street, Philadelphia, Pennsylvania.

BODINE, SAMUEL T., President, The United Gas Improvement Company, N. W. Cor. Broad and Arch Streets, Philadelphia, Pennsylvania.

BOEKEL, JULIUS, Manufacturer of Metal Goods, 518 Vine Street, Philadelphia, Pennsyl

vania.

BOERICKE, GIDEON, Civil Engineer, Wynnewood, Pennsylvania.

BOGUE, VIRGIL G., Civil and Consulting Engineer, 15 William Street, New York City. New York.

BOND, CHARLES OTIS, Manager, Physical Laboratory, The United Gas Improvement Company, and for mail, 7008 Greene Street, Mt. Airy, Philadelphia, Pennsylvania. BONINE, CHARLES E., Consulting and Designing Engineer, Harrison Bldg., Philadelphia, Pennsylvania.

BORDEN, EDWARD P., Retired, 421 Chestnut Street, Philadelphia, Pennsylvania. BORGNER, CYRUS, Manufacturer of Fire Brick and Clay Retorts, 234 North 23rd Street, Philadelphia, Pennsylvania.

BORIE, C. L., JR., Architect, 139 South 15th Street, Philadelphia, Pennsylvania. BORTON, GEORGE W., President and General Manager, Pennsylvania Crusher Company, 1324 Stephen Girard Building, Philadelphia, Pennsylvania.

BOSTWICK, JOHN VAUGHAN, Roxborough, Philadelphia, Pennsylvania.

BOURNE, GEORGE L., Vice President, Locomotive Superheater Company, 30 Church Street. New York City, New York.

BOWEN, SAMUEL BISPHAM, Manufacturer, 4th Street and Sedgley Avenue, Philadelphia, Pennsylvania.

BOWER, WILLIAM HENRY, Manufacturing Chemist, 29th Street and Gray's Ferry Road, Philadelphia, Pennsylvania.

BRADBURY, ROBERT H., Science Teacher, Southern High School, Philadelphia, Pennsylvania. BRADLEY, A. J., Manufacturer, 101 Beekman Street, New York City, New York.

BRADLEY, FRANCIS, Engineer, Midvale Steel Company, P. O. Box 1606, Philadelphia. Pennsylvania.

BRASSINGTON, JOHN W., Mechanical Engineer, The Pusey and Jones Company, and for mail, 902 Van Buren Street, Wilmington, Delaware.

BREED, GEORGE, Consulting Engineer, 1516 Commonwealth Trust Building, Philadelphis. Pennsylvania.

BREWSTER, FRANK H., General Superintendent, United States Rubber Reclaiming Company, and for mail, 180 Woodbridge Avenue, Buffalo, New York.

BRIESEN, FRITZ V., Lawyer, 25 Broad Street, New York City, New York.

BRINLEY, CHARLES A., Manufacturer, 247 South 16th Street, Philadelphia, Pennsylvania BRINTON, RUSSELL L., 1751 North 61st Street, Philadelphia, Pennsylvania.

BROCK, JOHN PENN, Vice President, American Iron and Steel Company, Lebanon, Pennsylvania.

BROCK, JOHN W., 511 Bullitt Building, Philadelphia, Pennsylvania.

BROMLEY, JOSEPH H., Manufacturer, Chelten and Wissahickon Avenues, Philadelphia.
Pennsylvania.

BROWN, AMOS P., Professor of Mineralogy and Geology, University of Pennsylvania, and
for mail, 20 East Penn Street, Germantown, Philadelphia, Pennsylvania.
BROWN, HENRY I., Insurance, 137 South 5th Street, Philadelphia, Pennsylvania.
BROWN, JOHN A., JR., Room 205, Real Estate Trust Building, Broad and Chestnut Streets
Philadelphia, Pennsylvania.

BROWN, J. STANFORD, Consulting Electrical and Efficiency Engineer, P. O. Box 38, Black
Hall, Connecticut.
BROWN, LUCIUS P., Chemist, Bureau of Food and Drugs, Department of Health, New
York, and for mail, 137 Davis Avenue, West New Brighton, New York City, New York.
BROWN, RICHARD P., President, Brown Instrument Company, and for mail, Wayne and
Windrim Avenues, Philadelphia, Pennsylvania.

BROWN, W. FINDLAY, Attorney-at-Law, 807 Pennsylvania Building, Philadelphia, Pennsylvania.

BROWNSTEIN, BENJAMIN, Mechanical Engineer, Ellwood City, Pennsylvania.

BRUNEL, ROGER F., Associate Professor of Chemistry, Bryn Mawr College, Bryn Mawr,
Pennsylvania.

BRUNER, FRANK A., Drawing Materials, 910 Filbert Street, Philadelphia, Pennsylvania.
BRUNKER, ROBERT J., Banker, 1000 Walnut Street, Philadelphia, Pennsylvania.
BRUSH, CHARLES F., Electrical Engineer, 481 The Arcade. Cleveland, Ohio.

BUCHANAN, CHARLES GORDON, Mechanical Engineer, President, C. G. Buchanan Company, 90 West Street, New York City, New York, and for mail, 16 North 9th Street, Newark, New Jersey.

BUCK, H. W., Consulting Engineer, 49 Wall Street, New York City, New York.

BUDD, A. VAN WYCK, Berwyn, Prince George County, Maryland.

BUDD, EDWARD G., Machinist, 502 Westview Street, Germantown, Philadelphia, Pennsylvania.

BUMCKE, C. GEBHARDT, Chief Chemist, F. S. Walton Company, Orthodox Street and Delaware River, Bridesburg, Philadelphia, Pennsylvania.

BUREAU, E. W., sylvania.

BUNNELL, STERLING H., Consulting Mechanical Engineer, Stratford, Connecticut.
BUNTING, C. M., Comptroller, Pennsylvania Railroad Company, 507 Broad Street Station,
Philadelphia, Pennsylvania.
Bronze Founder, 23rd and Westmoreland Streets, Philadelphia, Penn-
BURHORN, EDWIN, Engineer and Contractor, 938 Hudson Street, Hoboken, New Jersey.
BURK, ALFRED E., Manufacturer, 925 North Third Street, Philadelphia, Pennsylvania.
BURKE, M. D., Second National Bank Building, S. E. Cor. 9th and Main Streets, Cincinnati,
Ohio.

BURLEIGH, J. J., Vice President, Public Service Corporation of New Jersey, and for mail,
Merchantville, New Jersey.

BURLINGAME, LUTHER D., Industrial Superintendent, Brown and Sharpe Manufacturing Company, Providence, Rhode Island.

BURNHAM, GEORGE, JR., 1101 Morris Building, Philadelphia, Pennsylvania.

BURNHAM, WILLIAM, Manufacturer, President, Standard Steel Works Company, Morris Building, Philadelphia, Pennsylvania.

BURROUGHS, JOSEPH H., Lawyer, 125 South Fifth Street, Philadelphia, Pennsylvania. BURTON, THOMAS L., Representative, Westinghouse Air Brake Company, 318 Westinghouse Building, Pittsburgh, Pennsylvania.

BUSH, S. P., Manufacturer, The Buckeye Steel Castings Company, Columbus, Ohio.
BUSSER, FRANK S., Lawyer, 926 Land Title Building, Philadelphia, Pennsylvania.
BUTLER, CHARLES N., Attorney-at-Law and Solicitor of Patents, 1318 Land Title Building,
Philadelphia, Pennsylvania.

BYRD, JOHN, Metal Worker, 1422 Catherine Street, Philadelphia, Pennsylvania.
BYRNES, FRANK, Clerk, 535 West Montgomery Avenue, Philadelphia, Pennsylvania.
CABEEN, MRS. FRANCIS, Doylestown, Pennsylvania.

CADWALADER, GOUVERNEUR, Manufacturer, Fort Washington, Pennsylvania.
CAIRD, JAMES M., Chemist and Bacteriologist, 271 River Street, Troy, New York.
CALDER, JOHN, Consulting Engineer, 25 Merriam Street, Lexington, Massachusetts.
CALDWELL, E. W., Physician, 480 Park Avenue, New York City, New York.

CALKINS, G. H., Manager, General Electric Company, Tenth Floor, Electric Building,
Buffalo, New York.

CALVERT, HAROLD, Electrical Engineer, Philadelphia Electric Company, 226 South 11th Street, Philadelphia, Pennsylvania.

CAMERON, FRANK K., Consulting Chemist, 3207 19th Street, N. W., Washington, D. C. CANBY, WILLIAM W., Fruit Grower, Grants Pass, Oregon.

CANFIELD, FREDERICK A., Mining Engineer, Dover, New Jersey.

CAPLES, MARTIN J., Vice President, Hocking Valley Railway Company and Chesapeake and Ohio Railway Company, 50 East Broad Street, Columbus, Ohio.

CAPP, JOHN A., Mechanical Engineer, 1332 Union Street, Schenectady, New York.

CAPP, S. BUNKER, Capitalist, P. O. Box 2054, Philadelphia, Pennsylvania.

CAPPS, W. L., Chief Constructor, U. S. N., Bureau of Construction and Repair, Navy Department, Washington, D. C.