False ceiling built to screen duct work for the new air conditioning system in the DuPont Building. Here, one of the acoustic pans is being removed to show access to the ducts.
Periodicals; Chemical industry; Plastics industry; Bulldozers; Fire fighting; Shooting; Weeds; Christmas trees; Plastics industry; Automobile industry;
Table of Contents: Rearranging the earth by the cubic yard; Foiling false alarms; Powder-burning and pigeon-bustin society; Porterville's planners look to the skies; A modern trimming on an old yule tradition; Treadmill turnpike to nowhere;...
Correspondence regarding the price for passage of a family of five and a family of four. Catherwood warns against the false representation of the age of children.
Rayon tow is here being converted into top on a machine invented by N.S. Campbell, of Greenwich, Connecticut. The operator has inserted several ends of DuPont Fiber-D rayon tow into the far end of the machine. They then pass between a pair of...
Advertising card for "The Sexual System and its Derangements" by Dr. E.C. Abbey of Buffalo, New York. Puzzle card with illustration showing a scene in which the reader must find animals hidden in the picture.
