《Scientific American Supplement, No. 415, December 15, 1883》 - 免费有声读物

The Scientific American claims to be the oldest continuously published periodical in the United States, have 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 Insanity from Alcohol, Discovery of Ancient Church in Jerusalem, Preparation of Lard for Use in Pharmacy, and The New Russian Torpedo Boat. - Summary by Larry Wilson