ScientificAmerican1917-01-06.jpg Scientific American 1916-12-30ThumbnailsScientific American 1917-01-13Scientific American 1916-12-30ThumbnailsScientific American 1917-01-13Scientific American 1916-12-30ThumbnailsScientific American 1917-01-13Scientific American 1916-12-30ThumbnailsScientific American 1917-01-13Scientific American 1916-12-30ThumbnailsScientific American 1917-01-13

Nineteenth Annual Motor Number. Special issue on automobiles. A graphical representation of the automobile industry, showing how if brought together in single units, the total of cars now in use in the United States, the 1916 cars, the gasoline and oil used, and the public's annual bill for new cars and upkeep, would compare with the Woolworth Building.