Instruments like this used in India (1936 and 1940), Canada (1937), and the US (1936-38, 1940, 1946). This one, No. 14, used to correlate measurements made in the 1930s with those made in 1950s and 1960s with the pulsar-type chamber. Mfg. CIT Physics Shop.
ID number
ST-CR-05
Title
Torsion seismograph
Abstract
Mfg. Fred C. Henson Co., Pasadena. 14.5” tall. The full name of the instrument is the Wood-Anderson torsion seismograph. It was invented jointly by Harry O. Wood of the Seismo Lab and J.A. Anderson of the Mt. Wilson Observatory. Patent registered 9-1-25 in the name of the Carnegie Institution of Washington.
ID number
ST-GE-05
Title
Voltmeter, multicellular electrostatic
Abstract
Has model or serial number 15129. Manufacturer noted as successor to Kelvin and James White on plate. Mfg: Kelvin, Bottomley & Baird, Ltd.
ID number
ST-PH-05
Title
Wind direction plate with compass, Arabic
Abstract
Inscribed in Arabic.
ID number
ST-WA-05
Title
Diffraction grating, photo negative of
Abstract
Photo negative of a diffraction grating. Ruled by Lewis Rutherford in April 1873. Glass plate measures approx. 2”x2.5”.
ID number
ST-AS-04
Title
Spectrophotometer, quartz, Model DU
Abstract
Serial no. 29649. With phototube housing and lamp housing directly attached. Connected by cord to power supply; cord is frayed. Mfg. National Technical Laboratories.
ID number
ST-BE-04
Title
Zeichenapparat (drawing apparatus)
Abstract
Used in conjunction with microscope to copy projected images. In wood box. Mfg. Carl Zeiss, Jena, Germany.
ID number
ST-BI-04
Title
Ion chamber used by Millikan and Neher
Abstract
Used on Stratosphere flight of National Geographic Soc./Army Air Corp in 1934. Balloon exploded when gondola 2000 ft. above ground. Piece broken out of clock case. Used in ships around the world. RAM had 3 or 4 similar instruments made for his trip to S.A. in 1926, when he went to Lake Titicaca and a Bolivan mining town. This work is all described in Phy. Rev. 31. Mfg. CIT Physics Shop.
ID number
ST-CR-04
Title
Pentode, Western Electric 282A
Abstract
Used on the first ship to shore transmission (S.S. Vaterland) and for the first airplane transmitter by H.E. Mendenhall and Lewellyn. Mfg. Western Electric.
ID number
ST-ME-04
Title
Balance with two glass pans
Abstract
One of the glass pans is broken.
ID number
ST-MO-04
Title
Microscope, brass eyepiece
Abstract
Eyepiece in screw-top case, about 2” high, 1” diam. Bausch & Lomb Optical Co.
ID number
ST-MU-04
Title
Voltmeter, multicellular electrostatic (A)
Abstract
Has model or serial number 2900. Wooden box. See exhibit catalog, “Scientific Instruments Ancient and Modern,” for more information. Mfg: Kelvin & James White, Ltd.
ID number
ST-PH-04
Title
Sector, brass
Abstract
Galileo is credited with having invented the instrument, which is also known as a proportional compass. See Galileo's "Operation of the Geometric and Military Compass"; also "Scientific Instruments Ancient and Modern." Mfg: Gottfriedt Reiff, Nuremberg, Germany.
ID number
ST-WA-04
Title
pH meter, Model M
Abstract
Serial no. 5785. Mfg. by National Technical Laboratories.
ID number
ST-BE-03
Title
Planimeter no. 132
Abstract
Serial no. 6120. In black box lined in blue velvet. Came with manual “Compensating Polar Planimeters,” from Keuffel and Esser. Mfg. Deitzgen.
ID number
ST-BI-03
Title
Ion chamber used by Millikan and Bowen
Abstract
Small cylindrical electroscope used in 1932 in Dallas, TX. See Phys. Rev. 44:246(1933). Mfg. CIT Physics Shop.
ID number
ST-CR-03
Title
Radar switch tube
Abstract
Russian copy of Western Electric Mark II 5D21, anti-submarine radar switch tube by H. E. Mendenhall (CIT 1927), J. Westsan and C.H. Elmendorf (CIT 1936). Found on Oregon beach ca. 1948.
ID number
ST-ME-03
Title
Microscope, monocular with wood box and keys
Abstract
Mfg: R & J Beck, London and Philadelphia. Includes two eyepieces and mirror.
ID number
ST-MU-03
Title
Galvanometer
Abstract
Damaged by all from the shelf during the 1-17-94 Northridge earthquake, two pins on side broke off, repairable. E. Leybold's Nachfolger, Cologne.
