Search Results
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12 items
Tallqvist's Hämoglobin scale
- 1900 – 1920
Developed circa 1900 and often called the Tallquist Method, it is used to compare a patient's blood color to a chart of red colors to diagnose possible anemia. The method is still used when more sophisticated equipment…
- Author Tallqvist, Theodor Waldemar, 1871-1927
- Publisher Sharp & Smith
- Subject Hemoglobin, Diagnosis, Medical care, Blood
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Industrial Nature Cabinet Series Poster: Corn
- 1905
Educational poster with product samples attached. Samples include (top to bottom, left to right) Corn Oil, Crystal Glucose, Anhy. Sugar, C. Dextrine, Corn Flower, Climax Standard, Celluloid, Corn Rubber (missing),…
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11 items
The Design and Equipment of Small Chemical Laboratories
- 1908
Intended to inform the inexperienced college graduate how to design and equip a chemical laboratory, this volume includes sections describing the various general features, appliances, and apparatus needed. Credits the…
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76 items
Laboratory Wood Work : Physics, Biology, Chemistry, Physiography, Drawing Tables, Office Furniture, Domestic Science, Manual Training, Benches, etc.
- After 1910 – before 1913
An early 20th-century catalog of laboratory furniture equipment manufactured and sold by Leonard Peterson & Co. The fully illustrated catalog primarily advertises custom-built benches and cabinetry for science…
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Brace Spectrophotometer
- 1911
"The instrument is designed after suggestions from Prof. D. B. Brace, for whom a number of these instruments were built."
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Heliostats
- 1911
Top figure is a Foucault heliostat, which reflects the rays of the sun in a horizontal direction. Bottom figure is a two-mirror heliostat, where the second mirror allows the path of the light beam to be thrown in any…
- Creator Of Work Wm. Gaertner & Company
- Subject Scientific apparatus and instruments, Heliostat, Laboratories--Equipment and supplies, Measuring instruments
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15 items
Instruments of Precision Laboratory Apparatus, M-L Catalog
- 1911
The Gaertner Scientific Corporation began as a small scientific shop established by William Gaertner in 1896 on Chicago’s Southside. The company, originally known as Wm. Gaertner & Co., manufactured astronomical and…
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Ives Duplex Diffraction Spectroscope
- 1911
"This spectroscope will show the first order of spectrum all at once across the field of the eyepiece."
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Littrow Spectroscope
- 1911
"The collimators and observing telescopes have apertures of 50mm., and focus by rack and pinion. Two 60 degree prisms of heavy flint glass and of 70mm. side are furnished with the instrument. The mirror may be used in…
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Melloni's Apparatus
- 1911
"For studying the reflection, refraction, absorption and polarization of radiant heat."
- Creator Of Work Wm. Gaertner & Company
- Subject Scientific apparatus and instruments, Laboratories--Equipment and supplies, Measuring instruments
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15 items
Nostrums and Quackery
- Articles on the Nostrum Evil, Quackery and Allied Matters Affecting the Public Health; Reprinted... from the Journal of the American Medical Association
- 1911
Volume two of three, compiled by the Journal of the American Medical Association. The volume consists of a collection of pseudo-scientific printings outlining fraudulent medicinal treatments. The quackery included in…
- Author American Medical Association
- Editor Cramp, Arthur J. (Arthur Joseph), 1872-
- Subject Quacks and quackery, Patent medicines, Women's health services, Drugs, Therapeutics, Drugs, Nonprescription, Obesity--Treatment, Sexism in medicine, Drug addiction--Treatment, Public health, Lydia E. Pinkham Medicine Company
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Small Comparator
- 1911
An "instrument intended for measuring spectra photographs, gratings, divided scales, or such objects which can be focused by the microscope and will allow rapid measurements of the highest possible accuracy." The design…
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Spectrometers with Polarizing Attachment and Camera Attachment
- 1911
Top figure is a laboratory spectrometer with a polarizing attachment. Lower figure is a spectrometer with a third arm and camera attachment.
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"The Geryk" Mechanical Air Pump for High Vacua
- 1912
Figure depicting "The Geryk" air pump, "an English pump (Fleuss' patents), and a strictly mechanical device with no valves in the usual sense of the word..."
Part of Catalog K: Physical Apparatus for Universities and…
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Alternating Current Demonstration Apparatus
- 1912
Apparatus for showing the principles of an induction or alternating current motor and demonstrating the rotating magnetic field.
Part of Catalog K: Physical Apparatus for Universities and Colleges, a catalog of…
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Apparatus for Lecture Table Demontration with Selenium Cells
- 1912
"These cells show the extraordinary property which selenium possesses of changing its electrical resistance under the influence of light."
Part of Catalog K: Physical Apparatus for Universities and Colleges, a catalog…
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Apparatus for Showing Tesla's Experiments
- 1912
Apparatus for showing Tesla's experiments with electricity.
Part of Catalog K: Physical Apparatus for Universities and Colleges, a catalog of laboratory instruments for the physical sciences made by the Central…
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CENCO Meters
- 1912
Catalog entries for voltameters, instruments for measuring both voltage and amperes of direct electric current.
Part of Catalog K: Physical Apparatus for Universities and Colleges, a catalog of laboratory instruments…
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College Spectrometer (Wilson No. 2)
- 1912
Catalog entry for an instrument that measures the wavelengths of light through a chemical sample. Can be used to determine elements in a sample when different elements emit different wavelengths of light. The…
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Current Electricty: Standard Cells and Dynamo Analysis Apparatus
- 1912
Catalog entries for standard battery cells and a Dynamo Analysis Apparatus, an early example of an electrical generator.
Part of Catalog K: Physical Apparatus for Universities and Colleges, a catalog of laboratory…
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Electro Magnet with Copper Tube Attachment
- 1912
Catalog entry for an Electro Magnet apparatus. "This apparatus was designed to supply our own laboratory with an electro-magnet of sufficient strength and field concentration for magnetizing, experimentation, etc. With…
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Electrometers
- 1912
Catalog entries for a quadrant electrometer and an electrometer for radioactive measurements.
Part of Catalog K: Physical Apparatus for Universities and Colleges, a catalog of laboratory instruments for the physical…
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Heavy Current Static Machines
- 1912
Catalog entry for a heavy current static machine.
Part of Catalog K: Physical Apparatus for Universities and Colleges, a catalog of laboratory instruments for the physical sciences made by the Central Scientific…
