Text from back of image: "Two "Bristol" 840 h.p. Mercury engines. The first all-metal modern twin-engined monoplane for the R. A. F. to carry the whole of the military load within the structure. Saw service with all the Commands of the R. A. F. and...
La Sabana Airport, San Jose Costa Rica. A contrast in transportation.Oxcarts and modern transport plane hauls both freight and passengers in hours, whereas with old packhorse method it took days, even weeks.More gasoline drums from plantations are...
Text from back of image: "A view of the modern airship shed, at Karachi, India which is to be used in the airship service between England and India. This was made as the port was officially completed by the insertion of the final bolt, in the...
Text from back of image: "One of the greatest engineering feats in aeronautical circles in modern times is the U. S. S. Akron, the Navy's newest queen of the air and the world's largest airship. It is now undergoing extensive tests. This picture...
Text from back of image: "One of the greatest engineering feats in aeronautical circles in modern times is the U. S. S. Akron, the Navy's newest queen of the air and the world's largest airship. It is now undergoing extensive tests. This photo...
A modern extruder-laminator in the Polychemicals Sales Service Laboratory. This machine is used for coating Alathon polyethylene resin on any web, such as paper, cloth, metal foil or cellophane. The DuPont laboratory is located at Chestnut run new...
A modern extruder laminator in the Plastic Department's Technical Service Laboratory. This machine is used for coating Alathon polyethylene resin on any substrate, such a paper, cloth, metal foil or cellophane. The DuPont laboratory is located at...
note with image: "(above) The Ford automobile show at the Hotel Astor in the fall of 1935, designed by Walter Dorwin Teague. The picture opposite [not scanned] shows the hotel's ballroom of the General Grant period as it looked before this 24-hour...
The DuPont Companys Belle Works stretches for more than a mile along the Kanawha River near Charleston WV. Plant products familiar to the consumer include antifreezes, fertilizers and a mold retardant for baked goods. Other chemical products are...
The DuPont Companys Belle Plant stretches for more than a mile along the Kanawha River near Charleston WV. Plant products familiar to the consumer include antifreezes, fertilizers and a mold retardant for baked goods. Other chemical products are...
Text from back of image: "Sometimes called the Super Fortress, this Titan of the air had a wing spread 45 feet greater than the Y1B-17. The XB-15 weighed 13 tons more, was 20 feet longer and three feet higher. Because of its extreme weight (35...
Caption: "This apparatus automatically tips and empties the cars filled with newly mined coal as they emerge from the depths. Modern apparatus like this has added speed and efficiency to the preparation of Reading Anthracite for use as fuel in...
Caption: "Side by side with the most modern electrical installations such as the conveyor line in the background, the pick-the ancient symbol of the miner's art, still holds a place of prime utility."
