Assemblies of flasks, bubbler absorption tubes and enclosed lamps make possible the burning of liquid samples and the collection of the gases formed. Here a chemist and laboratory assistants at the Experimental Station operate apparatus for...
Textile chemicals to make cotton and rayon resist creasing and mildew are aims of research by DuPont chemist shown here drying treated samples in this laboratory at the Experimental Station. Textile chemical research stems from early work on dyes.
Equipment used to prepare metallurgical samples for photo micrographic examination in the Sodium Products service laboratory at the Electrochemicals Department plant in Niagara Falls, New York. Samples are cut to size on the sectioning machine,...
Electroplated test samples being examined in the Sodium Products Service Laboratory at DuPont's Electrochemicals Department plant in Niagara Falls, New York. The laboratory is used for electroplating research and for technical service to the...
Assemblies of glassware of special and complex design are frequently necessary for the analysis of chemical compounds in the development of new and improved products. Here a chemist and laboratory assistant at the Experimental Station set up...
The William Pahlmann Papers provide a rich insight into the world of interior design in the middle of the twentieth century. Pahlmann (1900-1987) was well known for his use of bold colors, textures and mix of antique and modern furnishings....
Caption: "Coal inspectors, representing the sales department, take samples from each newly loaded car of Reading Anthracite. The samples are subjected to rigid laboratory tests."
Because electrical sparks must be able to jump 200 times a second through the contact point of an automobile voltage regulator, this tiny part is platinum tipped. The platinum, at $1,334 a pound, makes the part one of the most expensive, ounce for...
Letter addressed to Peter Bauduy. Parker reports on gunpowder sales in his market, the performance of du Pont gunpowder, and his efforts to market the gunpowder by supplying samples to regional merchants, including those in the Northwest Territory.
Addressed to Peter Bauduy. Freeman reports that he will circulate samples of du Pont gunpowder to merchants in his area but warns that the powder grains are too small for duck hunting guns.
Mentions a report on tests of English gunpowder, sending samples of English gunpowder and saltpeter to DuPont, and the possibility of making another contract for gunpowder.
Letter addressed to Peter Bauduy. McCall talks about the possibility of an order from the U.S. Indian Department and the necessity of sending samples of gunpowder along with a shipment to boost customer confidence.
