| Braedli-Wyss, Dr. Med C. | Burgdorf, Switzerland | |
| Broch, Dr. Cato | Aslvik, Hardanger Norway |
Indefinite |
| Forguson, Dr. G. | The University of Glasgow Glasgow, Scotland |
Indefinite |
| Fletcher, Chass., M.D. | Cardiff, Wales | |
| Gough, J., M.D. | Cardiff, Wales | Depends on sponsoring of his visit. |
| Hampe, Dr. Jan F. | Municipal University of Amsterdam Amsterdam, Netherlands |
|
| Hugh-Jones, Philip, M.C. | Reader in Medicine University College of the West Indies Monta St. Andrew, Jamica, B.W.I. |
|
| Merewether, E.R.A., M.D. | H.M. Senior Med. Inspector of factories Ministry of Labor & Natl. Services St. James Square London S.W.L, England |
|
| Mey, A.V.M, M.C. | Chief, Silicosia Research Netherlands, Coalmines Branseum, Holland |
Indefinite |
| Orenstein, Dr. A.J. | Chief Medical Officer Rand Mines, Ltd. P.O. Box 1056 Johannesburg, S.A. |
|
| Oyanguren, Hernan, M.D. | 408 Union Americana St. Santiago, Chile |
|
| Vera, Dr. Minguel | Cia. Minera de Penoles, S.A. 416 de Matamoros St., Apartado 251 Monterrey, M.L. Mexico |