Instruments & Innovation

The Geissler Tube is a sealed glass cylinder of a unique design with a metal electrode at each end. The Geissler Tube was invented by the German glassblower and physicist, Johann Heinrich Wilhelm Geissler (1814-1879) in…

This type C medium-sized research microscope was manufactured by Ernst Leitz of Wetzlar, Germany. Featuring a black enamel horseshoe-shaped base and arm, this microscope also includes a reflecting mirror, eye piece,…

American Optical Corporation Sixty student model monocular microscope features American Optical Spencer objective lenses.

American Optical Corporation was a successor to the Spencer Lens Company, founded by Charles…

Developed in 1972, the HP-35 was Hewlett Packard's first pocket calculator and the first pocket calculator ever to have transcendental functions. Twenty HP engineers spent two years and approximately $1 million…

Modern reproduction of the first electric battery invented by Alessandro Volta in 1800. Base and top are wooden. Between the base and top rests a stack or pile of 46 copper-zinc cells. Electrodes used to tranfer the…

The Manometric Blood Gas Apparatus was a revision on the original, fairly simple volumetric glass apparatus designed by Dr. Van Slyke in around 1917. The instrument liberated and isolated "the desired gas contained in a…

Glass tube with a collecting reservoir that opens into a funnel (or breast piece). Round red rubber bulb attached to one end of the glass. Stamp in black ink on red bulb reads "Ingram's/'Omega'/London."

Glass tube with a collecting reservoir that opens into a funnel (or breast piece). Round black rubber pump attached to one end of the glass.

Banana-shaped bottle design enabled ease of cleaning, making this bottle widely known as the hygienic baby bottle.

A: Boat-shaped molded glass bottle. Embossed on one side of bottle are measurements in tablespoons;…

Long stem, round bottom flask with custom flange. Needle-size hole on opposite side of flange allows for release of pressure.

Electric-powered meter with instructions housed in wooden box. Movable components within box: two (2) slide glass filters (1 with red, green, and blue slides; 1 with orange, green, and blue slides); one (1) encasing to…

A: Bulb containing mercury attached to a glass tube of narrow diameter. Thermometer has Celsius scale with 20-30 degree range with major divisions every 1 degree and minor divisions every 0.1 degree.

B: Protective…

A: Bulb containing mercury attached to a glass tube of narrow diameter. Thermometer has Celsius scale with 0-100 degree range.

B: Protective cardboard tube for the thermometer (not digitized).

Partial immersion…

Used to create silicon ingots for use in the semiconductor industry, this crystal puller consists of two main parts, the furnace and the puller: the furnace is cylindrical and located at the bottom of the instrument, it…

Distillation is a method of separating chemical substances based on differences in their volatilities in a boiling liquid mixture. A distilled beverage is a liquid meant for consumption containing ethyl alcohol…

Hand-colored engraving by J. Pass after the drawing by Henry Lascelles for the section on "Chemistry." From Volume 4 of the Encyclopaedia Londinensis; or, Universal Dictionary of Arts, Sciences, and Literature,…

Hand-colored engraving by J. Pass after the drawing by Henry Lascelles for the section on "Chemistry." From Volume 4 of the Encyclopaedia Londinensis; or, Universal Dictionary of Arts, Sciences, and Literature,…

Hand-colored engraving by J. Pass after the drawing by Henry Lascelles for the section on "Chemistry." From Volume 4 of the Encyclopaedia Londinensis; or, Universal Dictionary of Arts, Sciences, and Literature,…

Hand-colored engraving by J. Pass after the drawing by Henry Lascelles for the section on "Chemistry." From Volume 4 of the Encyclopaedia Londinensis; or, Universal Dictionary of Arts, Sciences, and Literature,…

Hand-colored engraving by J. Pass after the drawing by Henry Lascelles for the section on "Chemistry." From Volume 4 of the Encyclopaedia Londinensis; or, Universal Dictionary of Arts, Sciences, and Literature,…

Hand-colored engraving by J. Pass after the drawing by Henry Lascelles for the section on "Chemistry." From Volume 4 of the Encyclopaedia Londinensis; or, Universal Dictionary of Arts, Sciences, and Literature,…

Hand-colored engraving by J. Pass after the drawing by Henry Lascelles for the section on "Chemistry." From Volume 4 of the Encyclopaedia Londinensis; or, Universal Dictionary of Arts, Sciences, and Literature,…

Hand-colored engraving by J. Pass after the drawing by Henry Lascelles for the section on "Chemistry." From Volume 4 of the Encyclopaedia Londinensis; or, Universal Dictionary of Arts, Sciences, and Literature,…

A spectrograph is an instrument used to obtain and record a light spectrum—it splits the light from an object into its component wavelengths so that it can be analysed. The spectral lines of a chemical element is…

Self contained pH meter with wooden exterior; hinged lid opens to reveal meter face and inlaid paper instructions for use; the dial is calibrated from pH 0 to pH 13 in .1 pH divisions; porcelain enamel lined electrode…