Scientific American Supplement, No. 829, November 21, 1891

"Scientific American Supplement, No. 829, November 21, 1891" by Various is a snapshot of late 19th-century scientific thought, presenting a collection of articles that explore the cutting edge of knowledge in fields like astronomy, botany, chemistry, medicine, and technology. The publication acts as a window into the era's scientific curiosity, with articles that inform readers about the latest scientific theories and investigations. The journal begins by explaining its mission and what it covers, later presenting a table of contents of articles covering the trajectory of the sun, the role of botany in economics, the latest enhancements in electrical and mechanical systems, discussions of military engagements in Chile, and the scientific reasons for the existence of oil in the ground, showing the effect of temperture on death rates, and the up and coming raisin business in California. Using a scientific approach, each discussion aims to break down complex topics, reflecting the period's focus on scientific advancement.