Appletons' Popular Science Journal, July 1899 Volume LV, No. 3, July 1899 is a publication that offers the reader an exciting journey into the world of science and research. In this issue you will find a variety of articles from different authors, revealing the current trends in the development of science and technology at the beginning of the 20th century. The publication reveals to the reader unique research from various fields of science, including physics, chemistry, biology, astronomy and others. Each article opens up new horizons of knowledge and prompts further research. Appletons' Popular Science Magazine is an excellent resource for those interested in science and wanting to learn more about the latest advances in the field. Thanks to this edition, you will be one step ahead in all scientific novelties and discoveries.