Appletons' Popular Science Monthly, May 1899, Volume LV, No. 1, May 1899 is a publication that offers readers a wide selection of interesting scientific articles and research. In this issue, authors of various scientific fields shared their discoveries and reflections with readers. Here you will find interesting articles about physics, chemistry, biology, geology, astronomy and other natural sciences. Each article explores a new topic or problem and tries to illustrate complex scientific material in an understandable way. This publication is suitable both for professionals in the field of science, and for the general public of readers who are interested in the latest achievements in the scientific field.