1911 Scientific American Supp December 16-Carrier Pigeons;Mount Wilson Telescope

Scientific American Supplement
December 16, 1911
This large issue (12X16″) is in excellent condition. The Supplement was similar to the regular Scientific American except the ads were deleted and
more photos were included in the larger articles. Some of the articles inside are: The cover shows bunkering steamers with 4 more photos inside; The Psychology of Light I; Fireless locomotives; Malaria; Return flight of Carrier Pigeons; Insect aviation; A great modern telescope at Mount Wilson; Insurance against unemployment in France; The stability of Aeroplanes; The senses of plants; electric waves directed by wires;
Most Scientific Americans in stock 1897-present. Most Supplements in stock 1901 to 1919. Inquire about other issues.

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