The book "Scientific American Supplement, No. 601, July 9, 1887", authored by a collective of authors, is a publication dedicated to actual scientific discoveries and problems of the 19th century. In this issue you can find interesting articles about modern achievements in the field of science, technology and innovation. Readers will be able to familiarize themselves with the advanced technologies of that time, discoveries in physics, chemistry, biology and other fields of knowledge. "Scientific American Supplement" was an important source of information for anyone interested in science and its development. This book is not only a document of its time, but also a source of great intellectual inspiration for today's researchers and science enthusiasts.