Color print advertisement for Boltaflex vinyl plastic, made with Saran plastic produced by Dow Plastics. The advertisement features a photographic collage of summer-themed applications of Boltaflex, including the…

Color print advertisement for Styron, the trade name for Styrenic plastics historically manufactured and sold by the Dow Chemical Company for a variety of consumer applications. The advertisement features a photograph…

An alchemist wearing a green robe uses a pair of bellows to control the heat of the fire beneath his crucible. Other vessels sit on the furnace at his side, and an animal skull hangs from a peg. A hammer and tongs…

Color advertisement from Jantzen Knitting Mills, Inc. in Portland, Oregon for a Jantzen swimsuit. The ad features a young woman wearing a strapless light blue one-piece swimsuit. In the background, a young man wearing…

Black metal (iron) U-shaped base with cylindrical brass (plated) parts; two metal slide clips mounted to slide plate; rotatable eye piece lowered or raised by the adjustment of top right knob; circular mirror underneath…

Translucent green, glass round-bottomed vase with heavy rainbow luster throughout. Base of the vase is round and then attaches to a vertical tube in the center, top of the tube has an ornamental curved design that…

Hexagonal-shaped clear Lexan bottle with a cardboard casing/label; black plastic lid with a dark amber nipple.

Lexan is a resin thermoplastic discovered by General Electric chemist Dr. Daniel Fox in 1953. It is similar…

A: Cast iron base attached to a sloping cast iron upright supporting the reader, prisms, sample cups, plungers, and a mechanism for raising and lowering the sample cups; two metal knobs control the height of the sample…

Brass cup-shaped receptacle used when crushing or grinding ingredients. Side of receptacle has two handles. Grooves along top and bottom circumference.

Round glass bottle with glass stopper; label attached to front identifies manufacturer and contents (label has been waxed over).

Round glass bottle with cork stopper; label attached to front identifies manufacturer and contents (label has been waxed over).

Round glass bottle with glass stopper; label attached to front identifies manufacturer and contents (label has been waxed over).

Round glass bottle with cork stopper; label attached to front identifies manufacturer and contents (label has been waxed over).

Round glass bottle with glass stopper; label attached to front identifies manufacturer and contents (label has been waxed over).

Round glass bottle with cork stopper; label attached to front identifies manufacturer and contents (label has been waxed over).

Round glass bottle with glass stopper; label attached to front identifies manufacturer and contents (label has been waxed over); bottle is half full with original dye.

Round glass bottle with cork stopper; label attached to front identifies manufacturer and contents (label has been waxed over); bottle is half full with original dye.

Chemistry sets reached their heyday in the 1950s, but production of them began in the United States during World War I. Playing with a toy chemistry set inspired many a boy to become a chemist, and not until the late…

Wooden box with metal instrument inside; instructions attached to top of box; instrument has a gauge and three turnable knobs; space along side has a power source and an electrode that is used for measuring; plaque on…

Cast iron base attached to a sloping cast iron upright supporting the reader, prisms, sample cups, and a mechanism for raising and lowering the sample cups on a focusing rail; metal knobs on each side control the height…

Irregularly-shaped piece of foam-like silver plastic; pieces of twisted copper wire are holding some portions together; bottom has a wax or glue-like material coating it; some areas have a blackened, charred appearance.

In a small workshop a medical alchemist tends to the foot of a seated patient while the man's wife and child look on. At left, an assistant grinds a substance--likely a medicine or salve--in a small mortar and pestle.…

Portrait of Paul Erhlich, recipient of the 1908 Nobel Prize in Physiology or Medicine for his contributions to immunology. Ehrlich was a German Jewish physician and scientist who worked in the fields of hematology,…