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The projector...

Item # 222748

January 01, 1910

SCIENTIFIC AMERICAN, New York, January 1, 1910

* Training St. Bernards
* Projector

This 16 page issue is in nice condition and contains illustrations of the latest inventions of the day with accompanying text including: "Inhaling Oxygen to Increase Muscular Energy", "An Automatic Apparatus for Projecting Pictures", "An Apparatus for Producing Local Heat Penetration", "The Great St. Bernard Hospice", and "The Night Sky:  December and January".

Historical Background: Scientific American is a popular science magazine, published (first weekly and later monthly) since August 28, 1845, making it the oldest continuously published magazine in the United States. It brings articles about new and innovative research to the amateur and lay audience.

Category: The 20th Century