In March, 1961, representatives of the national laboratories of Australia, Canada, The Netherlands, United Kingdom, U. S. S. R., United States, and West Germany, met at the NBS to devise means for reaching international agreement on a temperature scale between 10 and 90 ** f. As a first step toward this goal, arrangements were worked out for comparing the scales now in use through circulation of a group of standard platinum resistance thermometers for calibration by each national laboratory. Such a group of thermometers was obtained and calibrated at the NBS. These thermometers have now been sent to the United Kingdom for calibration at the National Physical Laboratory.

During the last week of march 1961, Columbus, Ohio was the site of the Fourth Symposium on Temperature, Its Measurement and Control in Science and Industry. The Symposium, which was jointly sponsored by the American Institute of Physics, the Instrument Society of America, and the National Bureau of Standards, attracted nearly one thousand registrants, including many from abroad. The Bureau contributed to the planning and success of the Symposium through the efforts of Mr. W. A. Wildhack, General Chairman, and Dr. C. M. Herzfeld, Program Chairman. Dr. A. V. Astin, NBS Director, opened the 5 -- day session with introductory remarks, following which a total of twenty-six papers were given throughout the week by NBS scientists, from both the Washington and Boulder Laboratories.