ROESSLER, FRANK, Manufacturing Chemist, 89 High Street, Perth Amboy, New Jersey. ROGERS, MRS. AUGENE P., 4007 Powelton Avenue, Philadelphia, Pennsylvania. ROGERS, JAMES S., Attorney-at-Law, 701 Commonwealth Trust Building, Philadelphia, ROLLE, SYLVAN D., Draftsman, The Bell Telephone Company of Pennsylvania, and for mail, 2143 North 19th Street, Philadelphia, Pennsylvania. ROLLER, FRANK W., Electrical and Mechanical Engineer, 233 Broadway, New York City, New York. RONDINELLA, L. F., Professor of Drawing and Designing, West Philadelphia High School for Boys, 48th and Walnut Streets, Philadelphia, Pennsylvania. ROSENBAUM, MORRIS, Foreign Exchange, 605 South 3rd Street, Philadelpnia, Pennsylvania. ROSENBAUM, W. A., Patent Attorney, 41 Park Row, New York City, New York. ROSENGARTEN, FRANK H., Chemist, 1905 Walnut Street, Philadelphia, Pennsylvania. ROSENGARTEN, FREDERIC, Manufacturing Chemist, P. O. Box 1625, Philadelphia, Pennsylvania. ROSENGARTEN, GEORGE D., Manufacturing Chemist, P. O. Box 1625, Philadelphia, Pennsylvania. ROSIN, JOSEPH, Chemist, Powers-Weightman-Rosengarten Company, 9th and Parrish Streets, Philadelphia, Pennsylvania. ROSS, T. EDWARD, Certified Public Accountant, 1209 Morris Building, Philadelphia,, Pennsylvania. ROWLAND, CHARLES B., Vice President, Continental Iron Works, West and Calyer Streets, RUGG, W. S., The University Club, 4439 Grant Boulevard, Pittsburgh, Pennsylvania. RUMFORD, WM. C., Address unknown. RUSBY, J. M., Engineer of Tests, The United Gas Improvement Company, Broad and Arch Streets, Philadelphia, Pennsylvania. RUSSELL, CHARLES J., Manager, Sales Department, The Philadelphia Electric Company, 10th and Chestnut Streets, Philadelphia, Pennsylvania. SADTLER, Dr. SAMUEL P., Consulting Chemist, 210 South 13th Street, Philadelphia, Pennsylvania. SADTLER, SAMUEL S., Consulting Chemist, 210 South 13th Street, Philadelphia, Pennsyl vania. SAEGMULLER, G. N., Vice President, in care of Bausch and Lomb Optical Company Rochester, New York. SALMON, FREDERICK W., Civil and Mechanical Engineer, Richmond, Virginia. SALOM, PEDRO G., Electro-Chemical Engineer, Commonwealth Trust Building, Philadelphia, Pennsylvania. SAMUEL, J. BUNFORD, Retired Iron Merchant, 1609 Spruce Street, Philadelphia, Pennsylvania. SANBORN, EDWARD H., Coal Mining, 1100 Commercial Trust Building, Philadelphia, Pennsylvania. SANDERSON, R. P. C., in care of The Baldwin Locomotive Works, 34 Victoria Street, London, England. SANDT, A. R., Consulting Engineer, 716-18 Metropolitan Life Building, Minneapolis, Min nesota. SANFORD, RUFUS H., Librarian, The Baldwin Locomotive Works, 500 North Broad Street, Philadelphia, Pennsylvania. SARGENT, C. E., Chief Engineer, Lyons Atlas Company, 2020 North Delaware Street, Indianapolis, Indiana. SARGENT, HENRY B., Hardware Manufacturer, 247 Church Street, New Haven, Con necticut. SARTAIN, PAUL J., Physician, 2006 Walnut Street, Philadelphia, Pennsylvania. SATTERTHWAITE, GEORGE, Manufacturer of Steel, in care of Tacony Steel Company, SAUER, FRANK H., Draftsman, 1307 Atlantic Avenue, Camden, New Jersey. SAUNDERS, WALTER M., Analytical and Consulting Chemist, 20 Dewey Street, Olneyville. Providence, Rhode Island. SAWTELLE, WILLIAM OTIS, Professor of Physics, Haverford College, Haverford, Pennsylvania. SCATTERGOOD, HENRY W., Manufacturer, 503 Land Title Building, Philadelphia. Pennsylvania. SCHAEFER, GEORGE F., 5th and Cherry Streets. Philadelphia, Pennsylvania. SCHEHL, OSCAR L., Mechanical Engineer, 1631 Girard Avenue, Philadelphia, Pennsylvania. SCHLAFGE, WILLIAM S., General Mechanical Superintendent, Erie Railroad Company, 50 Church Street, New York City, New York. SCHLICKE, C. P., Treasurer and Secretary, 31 Plaza Street, Brooklyn, New York. SCHROM, OSCAR G., Mechanical Engineer, 6017 Nassau Street, Philadelphia, Pennsylvania. SCOTT, WM. M., Draftsman, Box 76, Radnor, Pennsylvania. SEELY, LESLIE B., Teacher, 5918 Pulaski Avenue, Germantown, Philadelphia, Pennsylvania. SEIBERLING, F. A., Manufacturer, 1144 East Market Street, Akron, Ohio. SELGA, M., Manila Observatory, Manila, Phillippine Islands. SELLERS, ALEXANDER, Manufacturer, 1600 Hamilton Street, Philadelphia, Pennsylvania. SELLERS, COLEMAN, JR., Mechanical Engineer, 1600 Hamilton Street, Philadelphia, Penn sylvania. SELLERS, HORACE W., Architect, Ardmore, Pennsylvania. SELLERS, HOWARD, Millbourne House, Millbourne, Pennsylvania. SELLERS, RICHARD, Bellevue, Delaware. SELLERS, RICHARD C., Civil Engineer, Swarthmore, Pennsylvania. SELLERS, MRS. WILLIAM, Bellevue, Delaware. SELLERS, WILLIAM F., Manufacturer of Water Tube Boilers, Edge Moor, Delaware. SEVERY, MELVIN L., Inventor and Author, 431 South Berendo Street, Los Angeles, Cali fornia. SHACKELFORD, BENJAMIN E., Physicist, Westinghouse Lamp Company, Bloomfield, New Jersey. SHAND, A. C., Civil Engineer, Narberth, Pennsylvania. SHARER, CARL W., Superintendent of Equipment, The Keystone Telephone Company, and, for mail, 446 East Walnut Lane, Germantown, Philadelphia, Pennsylvania. SHARP, Dr. CLAYTON H., Technical Director, Electrical Testing Laboratories, 80th Street and East End Avenue, New York City, New York. SHARP, W. H., Paper Manufacturer, The Wellington, 19th and Walnut Streets, PhiladelphiaPennsylvania. SHARPLES, STEPHEN P., Chemical Engineer, 22 Concord Avenue, Cambridge, Massa chusetts. SHATTUCK, A. F., Chief Chemist, Solvay Process Company, and for mail, 615 Canon Drive, Beverly Hills, California. SHATTUCK, JOHN D., Gas Engineer, Chester, Pennsylvania. SHEARD, Dr. CHARLES, Editor, The American Journal of Physiological Optics, Southbridge, Massachusetts. SHERWOOD, L. T., Chemist, P. O. Box 196, Carney's Point, New Jersey. SHIMER, PORTER W., Chemist and Metallurgist, Easton, Pennsylvania. SHMIDHEISER, W. A., Mechanical Engineer, The Bell Telephone Company of Pennsylvania and for mail, 6017 Pine Street, Philadelphia, Pennsylvania. SHOEMAKER, SAMUEL, Builder and Real Estate, 1132 Land Title Building, Philadelphia, Pennsylvania. SHOEMAKER, THOMAS H., (Retired), 120 West Tulpehocken Street, Germantown, Philadelphia, Pennsylvania. SILLCOX, LEWIS K., Mechanical and Electrical Engineer, Herrick Road, Box 570, Riverside, Illinois. SILLIMAN, FRANK, JR., Engineer and Manager, 5987 Woodbine Avenue, Overbrook, Philadelphia, Pennsylvania. SIMSOHN, JULIAN STERN, Chemist, S. E. corner Broad Street and Girard Avenue, Philadelphia, Pennsylvania. SINKLER, JOHN P. B., Architect, 412 Otis Building, 112 South 16th Street, Philadelphia, Pennsylvania. SKINNER, C. E., Engineer, Research Division, Westinghouse Electric and Manufacturing Company, East Pittsburgh, Pennsylvania. SKINNER, H. J., Chemical Engineer, Vice President, Arthur D. Little, Incorporated, 71 West Chestnut Street, Wakefield, Massachusetts. SKINNER, ORVILLE CAMPBELL, Metallurgical Engineer, Superintendent, Standard Steel Works, Burnham, Pennsylvania. SLATER, HOWARD C., Mechanical Engineer, P. O. Box 332, Ridley Park, Pennsylvania. SMALLING, ELMER, JR., Student, 2939 North Camac Street, Philadelphia, Pennsylvania. SMITH, A. D. W., Mining Engineer, Coal Exchange Building, Wilkes-Barre, Pennsylvania. SMITH, ALBERT W., Professor of Industrial Chemistry, Case School of Applied Science, and for mail, 11333 Bellflower Road, Cleveland, Ohio. SMITH, A. T., in care of The Permutit Company, 440 Fourth Avenue, New York City, New York. SMITH, AUGUSTUS, Civil Engineer, Elizabeth, R. F. D. No. 2, New Jersey. SMITH, FRANK W., Vice President and General Manager, The United Electric Light and SMITH, HERBERT S. S., Professor of Civil Engineering, Princeton University, and for mail, P. O. Box 161, Princeton, New Jersey. SMITH, IRVING B., Chief of Research Department, Leeds and Northrup Company, and for mail, Ambler, Pennsylvania. SMITH, J. WALDO, Chief Engineer, Board of Water Supply, City of New York, Municipal Building, New York City, New York. SMITH, LESLIE DENIS, Color Investigation Laboratory, Bureau of Chemistry, U. S. Dept. of Agriculture, Washington, D. C. SMITH, N. W., Superintendent, Middle Division, Pennsylvania Railroad Company, Altoona, Pennsylvania. SMITH, OBERLIN, Mechanical Engineer and Manufacturer, in care of Ferracute Machine Company, Bridgeton, New Jersey. SMITH, P. F., JR., Manager, Altoona Works, Pennsylvania System, Altoona, Pennsylvania. SMITH, S. D., Machinist, 1616 North Redfield Street, Philadelphia, Pennsylvania. SMITH, WALTER B., Builder, 6490 Woodbine Avenue, Overbrook, Philadelphia, Pennsylvania. SMITH, W. HINCKLE, Banker, Bryn Mawr, Pennsylvania. SMITH, W. LEHIGH, Chemist, The Viscose Company, Box 171, Marcus Hook, Pennsylvania. SNELLENBURG, SAMUEL, Merchant, Market in care of Twelfth Streets, Philadelphia, Pennsylvania. SNELLING, WALTER O., Research Chemist, 208 North 5th Street, Allentown, Pennsylvania. SNOOK, H. CLYDE, Electrical Engineer, c/o Western Electric Company, 463 West Street, New York City, New York. SNYDER, CLINTON F., Chemist, Minersville, Pennsylvania. SNYDER, Professor MONROE B., Teacher and Astronomer, III Grand View Road, Ardmore, Pennsylvania. SOULAS, CHARLES W., Hotel Proprietor, 1108 Sansom Street, Philadelphia, Pennsylvania. SOUTHALL, JAMES P. C., Associate Professor of Physics, Columbia University, New York City, New York. SPACKMAN, H. S., President, Henry S. Spackman Engineering Company, 2024 Arch Street, Philadelphia, Pennsylvania. SPARKS, THOMAS W., Trustee of Estates, 4100 Walnut Street, Philadelphia, Pennsylvania. SPARRE, FIN, Chemist, E. I. du Pont de Nemours and Company, Room 450, du Pont Building, Wilmington, Delaware. SPENCER, H. B., President, Fruit Growers' Express Company, Munsey Building. Washington, D. C. SPENCER, PAUL, Electrical Engineer, The United Gas Improvement Company, Broad and Arch Streets, Philadelphia, Pennsylvania. SPENCER, THOMAS, Engineer, 3523 Balsam Avenue, Indianapolis, Indiana. SPERR, F. W., JR., Chief Chemist, H. Koppers Company Laboratory, Mellon Institute, Pittsburgh, Pennsylvania. SPERRY, ELMER A., Engineer, The Sperry Gyroscope Company, Sperry Building, Manhattan Bridge Plaza, Brooklyn, New York. SPICER, H. N., Metallurgical Engineer, The Architects Building, 101 Park Avenue, New York City, New York. SPITZ, SAMUEL, Inventor, 372 Bellevue Avenue, Oakland, California. SPITZGLASS, J. M., Mechanical Engineer, 2240 Diversey Boulevard, Chicago, Illinois. SPRUANCE, W. C., Vice President, in Charge of Production Department, E. I. du Pont de STANFORD, H. R., Civil Engineer, Naval Operating Base, Hampton Roads, Norfolk, Virginia. STANLEY, FRANK A., Editor, East Auburn, California. STEEL, JOSEPH M., Building Constructor, 1600 Arch Street, Philadelphia, Pennsylvania. STEIN, A., Manufacturer, 97 Gold Street, New York City, New York. STEINMETZ, CHARLES P., Chief Consulting Engineer, General Electric Company, and Professor of Electro-Physics, Union College, and for mail, Wendell Avenue, Schenectady, New York. STEINMETZ, JOSEPH ALLISON, Designer, Janney, Steinmetz and Company, 1421 Chestnut Street, Philadelphia, Pennsylvania. STEINMETZ, SPENCER J., 31 Evans Road, Brookline, Massachusetts. STEUBER, HENRY J., Chemist, 509 South 10th Street, Philadelphia, Pennsylvania. STEVENS, F. S., Engineer Maintenance of Way, Philadelphia and Reading Railway Company and for mail, 540 North 5th Street, Reading, Pennsylvania. STEVENS, JOHN S., 9th Street and Montgomery Avenue, Philadelphia, Pennsylvania. STEVENSON, Dr. A. R., Jr., Electrical Engineer, General Electric Company, 6 Union Street, Schenectady, New York. STEVENSON, S. PRICE, Manufacturer of Coal Storage Doors, 1500 West 4th Street, Chester Pennsylvania. STEWART, FRANK H., Dealer in Electrical Supplies, Old Mint Building, Philadelphia, STEWART, FRANK H., Textile Manufacturer, in care of Krout and Fite Manufacturing sylvania. STEWART, THOMAS S., Physician, 18th and Spruce Streets, Philadelphia, Pennsylvania. STILLWELL, L. B., Consulting Engineer, 143 Liberty Street, New York City, New York. STINE, WILBUR M., Author, 334 West Main Street, Mechanicsburg, Pennsylvania. STITZER, A. B., Chief Engineer, Republic Engineers, Incorporated, 60 Broadway, New York City, New York. STOERTZ, HOWARD, Chemist, Electric Storage Battery Company, and for mail, 4741 Rosehill Street, Philadelphia, Pennsylvania. STOKES, FRANCIS J., Machinery Manufacturer, 17th and Cambria Streets, Philadelphia, Pennsylvania. STONE, CHARLES A., Engineer, Member of Firm of Stone and Webster Engineering Corporation, 147 Milk Street, Boston, Massachusetts. STONE, C. W., Electrical Engineer, General Electric Company, Schenectady, New York. STONE, JOHN, Consulting Electrical Engineer, 4811 Panorama Street, San Diego, California. STOTESBURY, E. T., Banker, Chestnut and Fifth Streets, Philadelphia, Pennsylvania. STOUGHTON, A. B., Attorney-at-Law, 1506 Land Title Building, Philadelphia, Pennsylvania. STOUT, ORIN C., Hydraulic and Sanitary Engineer, Chillicothe, Barr County, Ohio. STRADLING, Dr. G. F., Teacher, Principal Northeast High Schoo', and for mail, 5120 Newhall Street. Ger na itown Philadelphia, Pennsylvania STRONG, WILLIAM WALKER, Consulting Physicist, 500 South York Street, Mechanicsburg, Cumberland County, Pennsylvania. .STROUD, EDWARD A., Florist, 508 South 41st Street, Philadelphia, Pennsylvania. STUTZ, ERNEST, Representative for Foreign Patents, 1705 Hope Street, South Pasadena, California. STYRI, Dr. HAALSON, Chief Chemist, S. H. F. Research Laboratory, Front Street & Frie Avenue, Philadelphia, Pennsylvania, SUCZEK, ROBERT, Mechanical Engineer, C. H. Wheeler Manufacturing Company, 18th Street and Lehigh Avenue, Philadelphia, Pennsylvania. SULZNER, CHARLES F., (Retired), 630 14th Street, Miami, Florida. SUPPLEE, WM. H., Factory Manager, 211 South 12th Street, Philadelphia, Pennsylvania. SUTTON, FRANK W., Industrial Engineer, Charles E. Bedaux Company, 4500 Euclid Avenue, Cleveland, Ohio. SWEET, H. N., Banker, 63 Mt. Vernon Street, Boston, Massachusetts. SWENSON, MAGNUS, President and Treasurer, Southern Wisconsin Power Company, Madison, Wisconsin. SYKES, JOHN P., The Baldwin Locomotive Works, Broad and Spring Garden Streets. Philadelphia, Pennsylvania. SYMONS, WILSON E., Consulting Engineer, Galena-Signa' Cil Company, 41 East 42nd Street, New York City, New York. SYNNESTVEDT, ARTHUR, Student, Bryn Anthyn, Pennsylvania. TABER, GEORGE H., Vice President, Gulf Refining Company, P. O. Box 1214. Pittsburgh, Pennsylvania. TAGGART, WALTER T., Professor of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania. TAIT, EDWARD H., Superintendent, 401 Brighter Apartments, Second & Penn Streets, Reading, Pennsylvania. TAIT, F. M., 80 Broadway, New York City, New York. TAKAMINE, JOKICHI, Research Chemist, Equitable Building, New York City, New York. TALBOT, H. P., Professor of Inorganic Chemistry, Massachusetts Institute of Technology, Boston. Massachusetts. TATE, ALFRED O., President, Tate Electrolytic Textile Processes, Incorporated, Cranston, Rhode Island. TATNALL, Dr. ROBERT R., Research Engineer, J. E. Rhoads and Sons, Wilmington, Delaware. TAWS, LOUIS, (Retired), 6654 Lincoln Drive, Germantown, Philadelphia, Pennsylvania. TAYLOR, DAVID WATSON, Rear Admiral, Chief, Bureau of Construction and Repair, Navy Department, Washington, D. C. TAYLOR, EDWARD B., Vice President, Pennsylvania Lines West of Pittsburgh, 901 Pennsylvania Station, Pittsburgh, Pennsylvania. TAYLOR, HOLLINSHEAD N., Tinplate Manufacturer, 300 Chestnut Street, Philadelphia, Pennsylvania. TAYLOR, LOWNDES, Route No. 1, P. O. Box 3, West Chester, Pennsylvania. TEEPLE, JOHN E., Consulting Chemist and Chemical Engineer, 50 East 41st Street, New York City, New York. TEMPLE, EDWARD B., Swarthmore, Pennsylvania. THAMM, CHARLES G. A., Clerk, 1526 Glenwood Avenue, Philadelphia, Pennsylvania. THOMAS, ARTHUR H., Laboratory Appliances. West Washington Square, Philadelphia, Pennsylvania. THOMAS, C. C., Professor of Mechanical Engineering, Dwight P. Robinson and Company, Electric Equipment Building, 1240 South Hope Street, Los Angeles, California. THOMPSON, ARTHUR W., President, Philadelphia Company, 435 Sixth Avenue, Pittsburgh. Pennsylvania. THOMPSON, CHARLES T., 426 Walnut Street, Philadelphia, Pennsylvania. THOMPSON, HUGH L., Consulting Engineer, Waterbury, Connecticut. THOMPSON, PAUL, N. W. cor. Broad and Arch Streets, Philadelphia, Pennsylvania. THOMPSON, ELIHU, Electrical Engineer, 22 Monument Avenue, Swampscott, Massachusetts. THORNE, WILLIAM H., Mechanical Engineer, 1600 Hamilton Street, Philadelphia, Penn sylvania. TIDDY, WILLIAM, Chief Chemist, Rainey-Wood Coke Company, Swedeland, Pennsylvania. TIEMANN, HUGH P., Metallurgical Engineer, Carnegie Steel Company, Pittsburgh, Penn sylvania. TIERNEY, L. E., Coal Operator, Powhatan, West Virginia. TIGERSTEDT, A. F., General Director, Board of Trade, Helsingfors, Finland. TILGHMAN, B. C., Manufacturer, Highfield, Dunham Road, Altrincham, Cheshire, England. TITZEL, R. JOHN, Gas Engineer, Hamilton Apartments, Norristown, Pennsylvania. TOCH, MAXIMILIAN, Paint Manufacturer, Director, Research Laboratory, Toch Brothers, 320 Fifth Avenue, New York City, New York. TOLMAN, L. M., Chemist, 7217 Yale Avenue, Englewood Station, Chicago, Illinois. TORCHIO, PHILIP, Chief Electrical Engineer, The New York Edison Company, Irving Place and 15th Street, New York City, New York. TOULMIN, H. A., JR., Patent Attorney, 901 Schwind Building, Dayton, Ohio. TOWNE, HENRY R., Mechanical Engineer, 420 Park Avenue, New York City, New York. TOWNSEND, JOHN SEALY, Professor of Physics, New College, Oxford, England. TRAUTWINE, JOHN C., JR., Civil Engineer, 257 South 4th Street, Philadelphia, Pennsylvania. Pennsylvania. TREXLER, HARRY C., Colonel, President, Lehigh Portland Cement Company, Allentown, Pennsylvania. TRUEMAN, WILLIAM H., Dentist, 47 High Street, Germantown, Philadelphia, Pennsylvania. TUTWILER, C. C., Consulting Gas Chemist, West Conshohocken, Pennsylvania. TYSON, H. P., Collegeville, Pennsylvania. UEHLING, E. A., Mechanical Engineer, 3226 McKinley Building, Milwaukee, Wisconsin. ULMER, CARL D., Chemist, Minnesota By-Product Coke Company, 1000 Hamline Avenue, St. Paul, Minnesota. UNDERWOOD, FREDERICK D., President, Erie Railroad Company, 50 Church Street, New York City, New York. UNWIN, WILLIAM CAWTHORNE, Civil Engineer, Palace Gate Mansions, Kensington, London, England. |