Thermometer

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OBJECT TYPE: MERCURY/MAXIMUM/FAHREN/MOUNTED
DATE: 1890
ARTIFACT NUMBER: 1993.0033.001

MANUFACTURER: Negretti & Zambra
MODEL: Unknown
LOCATION: London, England

More Information

General Information

Serial #: 17538
Part Number: 1
Total Parts: 1
AKA: N/A
Patents: N/A
General Description: WOOD FRAME WITH METAL PROTECTOR & HANGER/ GLASS THERMOMETER/ CERAMIC SCALE/ MERCURY

Dimensions

Note: These reflect the general size for storage and are not necessarily representative of the object's true dimensions.

Length: 35.0 cm
Width: 8.5 cm
Height: 3.3 cm
Thickness: N/A
Weight: N/A
Diameter: N/A
Volume: N/A

Lexicon

Group: Meteorology
Category: Atmospheric temperature measurement
Sub-Category: N/A

Manufacturer

AKA: Negretti Zambra
Country: England
State/Province: Unknown
City: London

Context

Country: Canada
State/Province: Yukon
Period: 1940'S?
Canada: A TYPE OF THERMOMETER USED BY THE CANADIAN METEOROLOGICAL SERVICE AT ITS OBSERVING STATIONS, SPECIFICALLY AT AISHIHIK OR SNAG, YT. BOTH STATIONS WERE ESTABLISHED AS AIRSTRIPS FOR THE AMERICANS IN 1942, TAKEN OVER BY THECANADIAN GOV'T AFTER WWII, & USED UNTIL THE LATE 1960'S(SEE DONOR'S LETTER IN SUPP.INFO.)
Function: AN INSTRUMENT THAT MEASURES THE HIGHEST OR MAXIMUM AIR TEMPERATURE BY MEANS OF A COLUMN OF MERCURY, THE TOP OF WHICH REMAINS FIXED AT THE HIGHEST POINT THE COLUMN REACHES.
Technical: THIS APPEARS TO REPRESENT AN OLDER STYLE OF THERMOMETER,IN WHICH THE SINGLE TUBE IS MOUNTED ON A SCALE ON A WOODEN MOUNT. SIMILAR INSTRUMENTS ARE ILLUSTRATED IN PATTERSON'S 1930 GUIDE TO CANADIAN OBSERVERS BUTNOT IN CANADIAN METEOROLOGIST W.E.K. MIDDLETON'S 1941 'METEOROLOGICAL INSTRUMENTS' IT SEEMS THAT THIS THERMOMETER PREDATES 1890. THE N&Z THERMOMETERS RECEIVED BY THE METEOROLOGICAL SERVICE OF CANADA BETWEEN 1890 AND 1903 HAD SERIAL NUMBERS FROM 69125 TO 106909. THERE WERE FOURTEEN SHIPMENTS WHICH TOTALED 729 THERMOMETERS. ENGLISH THERMOMETERS SHIPPED FROM 1885 TO 1889 WERE NUMBERED 865 TO 1174 BUT THE MANUFACTURER WAS NOT IDENTIFIED (REF. 4) .
Area Notes: Unknown

Details

Markings: BLACK LETTERING ON SCALE READING 'F. M.O. 17538 NEGRETTI & ZAMBRA, LONDON MAXM' WITH MFR.'S LOGO & MARKINGS FOR -40 TO +120/ THERMOMETER MARKED IN BLACK 'NPL 26 MO 17538' WITH MFR.'S LOGO
Missing: From CA of 12/22/1993 by Tony Missio: No - Complete
Finish: BROWN STAINED & VARNISHED WOOD/ BLACK PAINTED METAL/ CLEAR, COLOURLESS THERMOMETER WITH WHITE BACK & METALLIC BULB/ WHITE SCALE
Decoration: N/A

CITE THIS OBJECT

If you choose to share our information about this collection object, please cite:

Negretti & Zambra, Thermometer, before 1890, Artifact no. 1993.0033, Ingenium – Canada’s Museums of Science and Innovation, http://collection.ingeniumcanada.org/en/id/1993.0033.001/

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