Appletons' Popular Science Monthly, January 1900vol. 56, November, 1899 to April, 1900

A scientific publication produced in the late 19th century. This work compiles a series of articles focusing on various scientific topics and discoveries, offering insights into the advancements in fields such as astronomy, chemistry, and the applications of technology during that era. At the start of the publication, the article ''Advance of Astronomy During the Nineteenth Century'' by Sir Robert Ball discusses groundbreaking discoveries in astronomy, highlighting the notable identification of new celestial bodies such as the asteroid Eros. Ball vividly describes the methods astronomers used to identify these objects, illustrating how advancements in technology and observational techniques significantly expanded mankind's understanding of the solar system. The piece also reflects on historical events in astronomy, including the discovery of Neptune, while setting the stage for further exploration of the universe that would follow in the new century.