Manuscripts
Robert Kent, of the Army Ballistic Research Laboratory, writes to EPH
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Liquid splash formation, U.S. Army Ballistic Research Laboratory
Manuscripts
Liquid splash formation, Ballistics Research Laboratory. Note in the hand of Grace Burke Hubble on verso: "EPH BRL Huntington Library Collection".
mssHUB 1082 (6)

Equipment and machinery at the U.S. Army Ballistic Laboratory
Manuscripts
Equipment and machinery in the U.S. Ballistic Laboratory. Photographer: Photographic Measurements Section, Ballistic Research Laboratory Note in the hand of Grace (Burke) Hubble: "EPH, Huntington Library Collection."
mssHUB 1044 (5)

Diagram of the Flexible nozzle supersonic wind tunnel for the U.S. Army Ballistic Research Laboratory
Manuscripts
Diagram of proposed flexible nozzle supersonic wind tunnel for the U.S. Army Ballistic Research Laboratory, Aberdeen, Md. Note in the hand of Grace Burke Hubble: "EPH Huntington Library Collection". The image's label reads: "Flexible nozzle supersonic wind tunnel, Ballistics Research Laboratory, Aberdeen Proving Ground, MD." In the lower left-hand corner is a label that reads: "Prepared by Pictorial Branch, The Ordnance School, A.P.G., MD." Below this label is written "A28464".
mssHUB 1044 (17)

Viewing and camera equipment, U.S. Army Ballistic Laboratory
Manuscripts
Viewing and camera equipment at the U.S. Army Ballistic Laboratory. Note in the hand of Grace Burke Hubble: "EPH, Huntington Library Collection."
mssHUB 1044 (3)

