General Information

Serial #

ED6660

Part Number

1

Total Parts

1

AKA

N/A

Patents

N/A

General Description

GLASS/ MERCURY/ RUBBER?/ CARDBOARD

Dimensions

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

Length

38.2 cm

Width

6.0 cm

Height

5.4 cm

Thickness

N/A

Weight

N/A

Diameter

N/A

Volume

N/A

Lexicon

Group

Forestry

Category

Silviculture

Sub-Category

N/A

Manufacturer

AKA

Negretti Zambra

Country

England

State/Province

Unknown

City

London

Context

Country

Canada

State/Province

Unknown

Period

Unknown

Canada

A BRITISH-MADE INSTRUMENT USED BY THE CANADIAN FORESTRY SERVICE TO MONITOR ATMOSPHERIC-CLIMATIC CONDITIONS.

Function

AN INSTRUMENT THAT MEASURES THE RADIANT HEAT OF THE SUN, REGISTERING THE HIGHEST OR MAXIMUM TEMPERATURE BY MEANS OF ITS EFFECT ON A COLUMN OF MERCURY, THE TOP OF WHICH REMAINS FIXED AT THE HIGHEST POINT THE MERCURY REACHES.

Technical

A TYPE OF SOLAR RADIATION THERMOMETER WITH A SCALE OF +20 TO +200 F. & THE UNPROTECTED BULB PAINTED BLACK. MOST BLACK BULB RADIATION THERMOMETERS ARE COMPLETELY ENCLOSED IN AN OUTER SHEATH EXHAUSTED OF AIR, WITH A LARGE CLEAR OUTER BULB PROTECTING THEBLACK BULB.

Area Notes

Unknown

Details

Markings

BLACK SCRIPT ON INNER TUBE BACK READS 'Maximum', 'Negretti & Zambra, London', 'Made in England'/ FRONT SCALED FOR 20 TO 200 F. & MARKED 'E.D.6660'/ BOX MARKED IN RED 'BLACK bulb' & IN BLUE PEN 'P.A.16'

Missing

N/A

Finish

COLOURLESS, TRANSPARENT GLASS/ WHITE BACKED INNER TUBE/ BLACK PAINTED? BULB/ NATURAL CARDBOARD

Decoration

N&Z LOGO ON BACK