Scientific American Supplement, No. 447, July 26, 1884

Published on July 26, 1884, the Scientific American Supplement No. 447 is a periodical featuring various articles on advancements in science and technology. This issue covers topics such as engineering improvements in the harbor of Antwerp, meteorological advancements affecting shipping, and innovations in personal transportation like bicycles and tricycles. It also delves into scientific investigations, including the chemistry of hop bitterness and coal analysis, reflecting the industrial progress of the late 19th century.