MIT Museum

Dr. J.R. Zacharias, Professor of Physics, at M.I.T. watches as J.J. McLean installs the vacuum system for equipment in the Research Laboratoy of Electronics at the Institute. Dr. D.E. Nagle, instructor in physics, is in the background. [JRZ_13(2)]

Dr. J.R. Zacharias, Professor of Physics, at M.I.T. watches as J.J. McLean installs the vacuum system for equipment in the Research Laboratoy of Electronics at the Institute. Dr. D.E. Nagle, instructor in physics, is in the background. [JRZ_13(2)]

Dr. J.R. Zacharias, Professor of Physics, at M.I.T. watches as J.J. McLean installs the vacuum system for equipment in the Research Laboratoy of Electronics at the Institute. Dr. D.E. Nagle, instructor in physics, is in the background. [JRZ_13]