"Appletons Popular Scientific Monthly, October 1899, Volume LV, May-October 1899" is a publication that brings together the most interesting scientific explorations and discoveries in the natural sciences. In this volume, readers will be able to find articles on physics, chemistry, biology, and other scientific disciplines that reveal to them the full depth and variety of scientific research of that time. The authors of the articles are various scientists and specialists in their fields, which gives the publication additional authority and value. Appletons' Popular Science Monthly is an inexhaustible source of knowledge for those interested in science and the explanation of natural phenomena."