Serial no. 6680. Very similar to ST-MU-06, but larger. Calibration record inside top is dated Nov. 1947. Imported by James Biddle, Philadelphia. Mfg: Otto Wolff, Berlin.
ID number
ST-MU-12
Title
Cloud chamber, miniature
Abstract
Original description calls this instrument “Apparatus for shewing the tracks of alpha and beta particles and x-rays.” Mfg: Cambridge and Paul Instrument Co.
ID number
ST-PH-12
Title
Ion chamber, early (B)
Abstract
Small cylindrical electroscope with clock and photographic drum. Used by Millikan and Bowen in 1932. See Phys. Rev. 44:246-52 (1933). Mfg. CIT Physics Shop.
ID number
ST-CR-11
Title
Triode, Western Electric 710A
Abstract
Not clear from Mendenhall notes just what this is. Has a number 822 incised on it. Three contacts, radiator in the middle. Mfg. Western Electric.
ID number
ST-ME-11
Title
Globe, new terrestrial
Abstract
Mfg: C.S. Hammond & Co., NY.
ID number
ST-MU-11
Title
Ion chamber, early
Abstract
Smallest cylindrical electroscope with clock and photographic drum. Used by Millikan and Bowen in 1922. See Phys. Rev. 27:353 (1926). Mfg. CIT Physics Shop.
ID number
ST-CR-10
Title
Bulb, unidentified
Abstract
Function unknown. Mfg. General Electric.
ID number
ST-ME-10
Title
Typewriter, standard Underwood no. 5
ID number
ST-MU-10
Title
Potentiometer, type B high precision #2780
Abstract
Serial #52904. Mfg: Rubicon Co., Philadelphia, PA.
ID number
ST-PH-10
Title
Microscope of Max Delbrueck
Abstract
Bausch & Lomb, Model No. ZD1335, S/N 159185. 9” x 4.5” x 6”. Includes six extra lenses and two extensions.
ID number
ST-BI-09
Title
Slide rule
Abstract
Polyphase slide rule; ivory and wood in original box with original manual, “The Mannheim and Polyphase Slide Rules.” Mfg. Keuffel & Esser Co, NY.
ID number
ST-CH-09
Title
Ion chamber, spare
Abstract
According to Victor Neher, was used in Mariners II and IV in 1962 and 1964. Inscribed by Neher: “the last chamber.”
ID number
ST-CR-09
Title
Demonstration model, electron wave theory
Abstract
According to Mendenhall notes, this appears to be the demonstration model for C.J. Davisson's electron wave theory, which won a Nobel Prize in 1937. No more information is available. Glass hull, many contacts, partially painted grayish-black.
ID number
ST-ME-09
Title
Claude Lorraine mirror in box
Abstract
Nothing more in known about this item.
ID number
ST-MU-09
Title
Grating, concave
Abstract
This grating was ruled on speculum; a light aluminum coat has since been applied. The plate was prepared by the John A. Brashear Co., Allegheny, PA. It was ruled on Prof. Henry Rowland's engine at Johns Hopkins Univ., Baltimore, MD. Used by Bowen and Millikan from 1919 on.
ID number
ST-PH-09
Title
Cell compartment, DU spectrophotometer
Abstract
Black metal, heavy, trough-shaped, one end mounted and raised on adjustable legs. Not shown in Instruction Manuals for DU spectrophotometer as standard equipment. Possibly shop-made.
ID number
ST-BE-08
Title
Hygrometer
Abstract
Manufactured by Houston Glass Fabricating, and used by Max Delbruck. 16” x 9” 5”.
ID number
ST-BI-08
Title
Oxygen meter, Pauling, Model K
Abstract
Serial no. 2. Wood box, handle on top. On/off switch on front; dial lacking indicator card. Mfg. F&P Co.
ID number
ST-CH-08
Title
Ion chamber (B)
Abstract
Nothing is known of this ion chamber, except that it closely resembles ST-CR-06. Mfg. CIT Physics Shop.
ID number
ST-CR-08
Title
Klystron tuner, Sperry, Model 12
Abstract
Serial no. 194. Labelled WL-417A. Mfg. Westinghouse.
