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This is a brass telescope with copper-looking lacquer with intact eyepiece but missing its objective lens. It is mounted to adjust vertically in a brass pivot with a screw tightener. It is supported on a rotating brass base—a tripod with leveling screws.
Accession Number: 2009.uc.26
Alternative Name:
Primary Materials: Brass, Glass
On the base of the telescope: “J. Carpentier Paris 1827-2”.
Old Inventory Number = uc26.
Telescope length = 33, Base diameter (incl. legs) = 17.3
Used for the “determination of the absolute intensity of the earths magnetic field.” The telescope was mounted so as to be capable of rotation in a horizontal and vertical plane. It was used with a finely divided scale and a magnetometer. One of the earliest instruments used at Toronto as part of the magnetic observatory (see cover). See, W.J. Loudon and J. C. McLennan (1895) “A Laboratory Course in Experimental Physics”. (New York and London: MacMillan and Co.)
Good. The metal surfaces are somewhat tarnished. The telescope is missing its objective lens.
Associated Instruments:
Manufacturer: J. Carpentier, Paris
Date of Manufacture: c. 1870
Provenance:
For information on the manufacturer of this instrument, see this UTSIC blog post: <a href=”https://utsic.org/2011/02/15/jules-carpentier-1851-1921-a-modern-maker/”>Jules Carpentier (1851-1921): A Modern Maker</a> by Erich Weidenhammer.
Historical Notes:
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