SCIENTIFIC AMERICAN, New York, September 11, 1909  The front cover of the issue is entitled "A Remarkable Grain Elevator for Discharging Vessels" with additional photos inside the issue. Within the issue is "Counting Our People by Machine"; "Termination of the Rheims Aviation Meeting"; "The Rheims Aviation Meeting"; "Dr. Cook's Discovery of the North Pole" and more illustrations, articles and advertisements.

Complete in 16 pages, a small partial library stamp on the front page, otherwise in very good condition.