Search Results
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V.L. Gaddy with constant-temperature bath at Fixed Nitrogen Research Laboratory
- Circa 1927
General view of V.L. Gaddy demonstrating an apparatus used to create a constant-temperature bath to determine the equilibrium of Urea, a water-soluble powder form of carbonic acid frequently used as a fertilizer and…
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Carbon dioxide drier, compressor, liquifier, and liquid storage
- 1930-Jan-08
General view of a carbon dioxide drier, compressor, liquifier, and liquid storage used at the Fixed Nitrogen Research Laboratory's Urea Plant. Urea is a water-soluble powder form of carbonic acid frequently used as a…
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Mojonnier Apparatus
- 1922
Moisture and milk testers for determining fat and total solids in milk and dairy products according to the Mojonnier process.
- Creator Of Work Williams, Brown & Earle
- Subject Physical instruments, Milk--Testing, Laboratories--Equipment and supplies, Milkfat--Testing
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Vacuum distillation apparatuses
- 1913
Two vacuum distillation apparatuses with various components, including distillation flasks, thermometers, heating baths, vacuum tubes, as well as stands and clamps.
Vacuum distillation is a method of distilling at…
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Apparatuses for determining osmotic pressure and freezing point depression
- 1913
B 2040. Differential tensimeter.
B 2041. Storage rack with circular section for tensimeter.
B 2052. Stirring device, mechanically operated by clockwork.
B 2057. Reading device for thermometer.
B 2060. Complete apparatus… -
Apparatuses for water collection and extraction
- 1913
B 4919. Water sampling apparatus, with bottles and tube for chemical, gas, and bacteriological analysis.
B 4921. For removing river or seawater.
B 4922. Flow-through water sampler suitable for all depths.
B 4923. Winch… -
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Microtomes
- 1913
Microtomes are used for cutting tissues into extremely thin sections, for preparation of samples in microscopy.
B 5255. Sledge microtome for anatomical and bacteriological work.
B 5261. Microtome with crank for all… -
R. Jung sledge microtomes
- 1913
Microtomes are used for cutting tissues into extremely thin sections, for preparation of samples in microscopy.
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R. Winkel Göttingen microscope
- 1913
Microscope with achromatic objectives and Huygens eyepieces. Assembled with the "No. 2b" stand, for medium microscopes with lighting unit.
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R. Winkel Göttingen microscope
- 1913
Microscope with achromatic objectives. Assembled with the "No. 1" stand, for large microscopes.
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Ernst Leitz Wetzlar microscopes
- 1913
Oil immersion microscopes with various components and of different sizes.
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Carl Zeiss Jena microscopes
- 1913
Two microscopes with choices of various components for complete assembly.
B 5095. Sufficient for most bacteriological, histological, botanical, and zoological investigations.
B 5099. For bacteriological work (equipment… -
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Franz Schmidt & Haensch polarimeters
- 1913
Polarimeters are used to measure the angle of rotation of a beam of light passing through an optically active substance.
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Instruments for measuring radioactivity
- 1913
B 2282. Electrometer for radioactive measurements.
B 2285. Fontactoscope, an electroscope for measuring the radioactivity of water and gases.
B 2300. Electrometer with internal amber insulation. -
Apparatuses for determining boiling point elevation and freezing point depression
- 1913
B 2106. Precision apparatus for determining freezing point depression.
B 2107. For determining freezing point depression for clinical purposes.
B 2108. For determining freezing point depression for very small…