# Scientific American Supplement, No. 288, July 9, 1881

An audiobook by Various, read by LibriVox volunteers (5 h 18 min, English).

The Scientific American may be the oldest continuously published periodical in the United States, havinge launched its first publication in 1845. It has been a mainstay of popular science with in depth articles across a broad spectrum of scientific fields. In this supplement are short articles ranging through such topics as Seyfferth's Pyrometer, Organic Matter in Sea-Water, On the Composition of Elephants' Milk, and Economy of the Electric Light. - Summary by Larry Wilson

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