Alfonso Serret-Medina, Servicio Geologico de O. P. Cas-tellana 30, Madrid.
Madame A. Serret-Medina.
Jose Soler-Nadal, c/Antonio Ariias 11/5° B, Madrid.
Madame Jose Soler-Nadal.
Luis Torrent, General Goded 34, Madrid.
Santiago Uriel-Romero, Plaża del Nino Jesus 6, (7° A), Madrid.
Manuel Valdes, Auxini, Departamento de Construccion, Plaża de Salamanca 8, Madrid.
Madame M. Valdes.
Jose Valdes Dias-Caneja, Servicio Geologico de Obras Publicas, Claudio Coello 106, Madrid.
Etats-Unis
A. C. Ackenheil, 650 Royce Ave., Pittsburgh, Pa.
Madame A. C. Ackenheil.
W. L. Acker, Acker Drill Co. Inc., P. O. Box 830, Scranton, Penn.
C. N. Baker Jr., 732 Naperville Road, Wheaton, Illinois. Madame C. N. Baker Jr.
R. A. Barron, 4100 Beall Street, Landover Hills, Md.
J. A. Bishop, U.S. Naval Civil Engg. Laboratory, Port Hue-neme, Calif.
Reinard W. Brandley, 1321 Howe Ave., Sacramento 25, California.
Madame R. W. Brandley.
B. Browzin, 1930 Riverside Drive, Columbus 21, Ohio.
E. Brush, 624 Babetta, Park Ridge, Illinois.
S. J. Buchanan, 310 Varisco Bldg., Bryan, Texas.
Madame S. J. Buchanan.
Arthur Casagrande, Pierce Hall, Harvard University, Cambridge 38, Mass.
Madame A. Casagrande.
William A. Clevenger, 801 Vance St., Lakewood, Colorado. Madame W. A. Clevenger.
Elio D’Appolonia, 710 Swissvale Ave., Pittsburgh 21, Penn. Madame E. D\Appolonia.
Monsieur David D’Appolonia.
D. T. Davidson, Dept. of Civil Engineering, Iowa State University, Ames, Iowa.
Raymond F. Dawson, Box 7977, Austin 12, Texas.
Madame R. F. Dawson.
D. U. Deere, 207 Talbot Laboratory, Urbana, Illinois. Madame D. U. Deere.
Rey Sherman Decker, 800 « J » Street, Lincoln 8, Nebraska, U.S.A.
A. P. Delflache, 5765 Hooks, Beaumont, Texas.
William Eney, 201 Fritz Laboratory, Lehigh University,
Bethlehem, Pa.
Madame W. Eney.
Jacob Feld, 60 East 23 Street, New York 10, N. Y.
Madame J. Feld.
Fremont Felix, c/o Stone & Webster. Engg. S. A., 34, Champs-Elysćes, Paris.
E. C. W. Geuze, 6 Ledgestone Road, Troy, N. Y.
Donald T. Goldberg, 25 Kappius Path, Newton Centre 59,
Mass.
Madame D. T. Goldberg.
B. B. Gordon, 5925 Ranger Way, Carmichael, California. Madame B. B. Gordon.
Madame Melvin Ludwig.
Monsieur Melvin Ludwig.
Hamilton Gray, 2036 Gray Ave, Columbus 10, Ohio. Madame H. Gray.
Mademoiselle Harriet Gray.
Mademoiselle Priscille Gray.
Delon Hampton, School of Civil Engineering, Purdue Uni-versity, Lafayette, Ind.
Ronald C. Hirschfeld, Pierce Hall, Harvard University, Cambridge 38, Mass.
Wesley G. Holtz, 3250 Moore Street, Wheat Ridge, Colorado.
Fred A. Houck, 1210 Dexter St., Denver, Colorado. Madame F. A. Houck.
M. J. Hvorslev, Waterways Experiment Station, Vicksburg, Miss.
Herbert O. Ireland, 207 Talbot Laboratory, Urbana, Illinois.
R. A. Jessen, 35 Gregory Avenue, Passaic, N. J.
Alfreds Jumikis, College of Engineering, Rutgers University, New Brunswick, N. J.
Martin Kapp, c/o Port of New York Authority, 111 8th Ave-nue, New York 11, N. Y.
J. M. Kyle, 111 8th Avenue, New York, N. Y.
Glebe Kravetz, Apartado 106, San Pedro Sula, Honduras
C. A.
D. P. Krynine, 2960 Pine Ave., Berkeley 5, Calif.
C. C. Ladd, Mass. Institute of Technology, Room 1-343, Cambridge 39, Mass.
T. W. Lambe, Room 1-342 M. I. T., Cambridge 39, Mass. Joseph Leadabrand, 33 W. Grand Ave., Chicago 10, Illinois. Madame J. Leadabrand.
G. A. Leonards, School of Civil Engineering, Purdue Uni-versity, Lafayette, Indiana.
Thomas M. Leps, 601 W. 5th Street, Los Angeles 53, California.
David V. Lewin, 402 The Arcade, Cleveland 14, Ohio. Richard Loughney, 2407 Rockville Centre Pkwy, Ocean-side, New York, N. Y.
Madame R. Loughney.
John Lowe III, 26 Grandview Boulevard, Yonkers, N. Y. Madame John Lowe III.
Ulrich Luscher, 430 Marlboro Street, Boston 15, Mass. Howard M. McMaster, 4616 Dodge Street, Omaha 32, Nebraska.
H. Marcus, 2500 Wisconsin Ave., N. W., Washington 7,
D. C., U.S.A.
John A. Meredith, 3920 Hoyt Street, Denver, Colorado.
Madame J. A. Meredith.
M. D. Morris, 1860 Broadway, New York, N. Y.
R. K. Morse, El Paso, Illinois.
Torald Mundal, c/o International Engineering Co., 74 New Montgomery Street, San Francisco 5, California.
R. L. Nordlund, c/o Raymond International, 140 Cedar St., New York City.
T. Obatake, 4817 Lockhaven Ave., Los Angeles 41, California.
J. O. Osterberg, Civil Engg. Dept., Northwestern Univer-sity, Evanston, Illinois.
J. D. Parsons, 415 Madison Avenue, New York 17, N. Y. Madame J. D. Parsons.
Monsieur J. D. Parsons Jr.
Monsieur R. W. Parsons.
James J. Patrick, Bechtel Corp., 537 Market St., San Francisco 5, California.
R. B. Peck, 113 Talbot Laboratory, Urbana, Illinois. Monsieur J. L. Peck.
Jacob D. Perrine, c/o Capitol Engg. Corp., Boite Postale 6-4, Saigon (Viet-Nam).
Madame J. D. Perrine.
Henry A. Pfisterer, 111 Whitney Avenue, New Haven 10, Connecticut.
Madame H. Pfisterer.
Mademoiselle Carole Pfisterer.
Monsieur Charles Pfisterer.
Monsieur Peter Hart.
T. E. Phalen, Northeastern University, Boston, Mass.
M. Praszker, 58 Sutter St., San Francisco, California.
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