Scientific American Supplement
December 20, 1919
Some of the articles inside are: The cover shows iron and steel manufacture in Japan; The sense of direction in animals; Kudzu - the latest forage plant; The texture of sands; Airplane wing design; The Chlorination of water; ; Future Internal-combustion engines II; Experimental wireless telegraphy and telephony XI; ; a number of other articles and photos..
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.
Most Scientific Americans in stock 1879-present. Most Supplements in stock 1901 to 1919. Inquire about other issues.
Chosen Reflections/ Million magazines, Kaufman Texas 75142.
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