Scientific American Supplement, No. 430, March 29, 1884

Scientific American Supplement, No. 430, published on March 29, 1884, is a periodical featuring a collection of articles on various scientific topics including engineering, technology, electricity, and natural history. This issue reflects the scientific advancements and industrial interests of the late 19th century, with detailed discussions on subjects such as the iron industry in Brazil, electric launches, and the evolution of electric lighting experiments. The supplement serves as a historical snapshot of contemporary scientific practices and innovations.