National Museum of History and Technology. Division of Physical Sciences.

In 1890 a Section of Physical Apparatus was established in the Department of Arts and Industries with William Crawford Winlock as Honorary Curator. In 1897 the Section became the Mechanical Phases collection in the Division of Technology, curated by J. Elfreth Watkins. For its history through the Division of Engineering, Department of Engineering and Industries, see record unit 297.

In 1938 the Section of Physical Sciences and Measurement was created from the Section of Mechanical Technology of the Division of Engineering. Frank A. Taylor, Curator of Engineering, assumed curatorial responsibility for Physical Sciences and Measurement, serving in this capacity until 1955. His successor, Robert P. Multhauf, was Curator of the Section from 1955 to 1957.

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