Physicist A.C. Webber studies a new model of a three dimensional transparent color system which makes it possible to identify colors by number. The model is made out of DuPont's Lucite acrylic resin. All colors that the eye can distinguish can be...
Miss Dorothy Bennett of the DuPont Company's dyestuffs Technical Laboratory mixes lake colors on a lithographer's stone, bringing them to a specified working concentration to make sure they conform to standard.
Some perfumes are compounded from as many as sixty ingredients. The number of items in a compounding laboratory many reach into thousands. The young woman shown here is not only an expert on which of these items can be used successfully for...
Spinnerets, after turning out filaments or yarn for specified periods, are taken to a laboratory for cleaning and checking, a standard procedure to guard the quality and uniformity of rayon yarn made at the plants of E.I du Pont Nemours & Company....
Spinnerets, after turning out filaments or yarn for specified periods, are taken to a laboratory for cleaning and checking, a standard procedure to guard the quality and uniformity of rayon yarn made at the plants of E.I du Pont Nemours & Company....
Text on photo: "Made under Patent No. 74,379, granted to Michael Kelly, Feb. 11, 1868. In addition to the 'thorn wires' the letter-patent specified the use of a 'rope of twisted hay or other suitable cheap material, saturated with tar or analogous...
Copy of painting of the American Eagle, which is the ship that brought members of the du Pont family to America in 1800. Typed caption with image: "COPY - December 21, 1946. From records of the former Bureau of Marine Inspection and Navigation,...
