thermometer
Date1860-1879
Inventory Number4401
ClassificationThermometer
Subject
Maker
Heinrich J. W. Geissler
1814 - 1879
Owner
Theodore William Richards
1868 - 1928
Cultural Region
Place of Origin
Dimensions0.8 x 47.6 cm (5/16 x 18 3/4 in.)
case: 51.8 x 1.9 cm (20 3/8 x 3/4 in.)
case: 51.8 x 1.9 cm (20 3/8 x 3/4 in.)
Material
Accessoriesmarbled paper on cardboard case with peppewort designed inner surface
DescriptionA glass thermometer with a mercury capillary and a milk glass scale calibrated from 95 to 210 degrees Celsius, with a precision of 2/10 of a degree. It has a small glass ring on the end opposite the mercury bulb.
Signedon back, script: Dr. H. Geissler in Bonn
Inscribedscale marked on back: Centigrade
FunctionA laboratory thermometer for very hot liquids (beyond the boiling point of water).
Dr. H. Geissler, Nachfolger Franz Müller
Date: 1890-1920
Accessories: black cardboard case with marbled paper inner surface
Object number: 4407
Dr. H. Geissler, Nachfolger Franz Müller
Date: 1890-1910
Accessories: black cardboard case with red inner surface
Object number: 4381
Dr. H. Geissler, Nachfolger Franz Müller
Date: 1890-1920
Accessories: black cardboard case with red inner surface
Object number: 4404
Dr. H. Geissler, Nachfolger Franz Müller
Date: 1890-1920
Accessories: black cardboard case with green inner surface
Object number: 4399
Dr. H. Geissler, Nachfolger Franz Müller
Date: 1890-1920
Accessories: black cardboard case with red inner surface
Object number: 4397
Dr. H. Geissler, Nachfolger Franz Müller
Date: 1890-1920
Accessories: brass cap with knob at top; black cardboard case with red inner surface
Object number: 4400
Fritz Köhler
Date: 1900-1920
Accessories: black cylindrical cardboard case with red inner surface
Object number: 4435
American
Date: 1890-1910
Accessories: cylindrical cardboard case with green inner surface
Object number: 4438
Corning
Date: 1900-1920
Accessories: black cardboard case with green inner surface
Object number: 4406
Bender und Hobein
Date: 1900-1930
Accessories: black cylindrical cardboard case with red inner surface (top missing)
Object number: 4433
German
Date: 1890-1920
Accessories: black cardboard case with red inner surface
Object number: 4398
Dr. H. Geissler, Nachfolger Franz Müller
Date: 1890-1920
Accessories: navy blue cardboard case with red inner surface
Object number: 4395