The book "Scientific American Supplement, No. 497, July 11, 1885" is a unique source of scientific knowledge and news in the field of technology, medicine, and other scientific research at the beginning of the late XIX century. In this issue, the authors present to the readers the cutting-edge discoveries and innovations of the time, proposed in the leading scientific journals. The publications included in this edition cover a wide range of topics, from the latest inventions in the field of mechanical engineering to research in the fields of medicine and biology. Readers will have the opportunity to familiarize themselves with the description of the latest discoveries in the world of science and technology, as well as to deepen their knowledge about various aspects of life and the development of society in the 19th century. In each article, the authors reveal the essence of the problem in detail, present research data and try to convey to the reader the importance and relevance of the reported information. "Scientific American popular science supplement" reflects the spirit of scientific progress of the era and promotes the popularization of science among the general public. This book will be a valuable source of knowledge for anyone interested in the history of science, technology, and human progress.