"Scientific American supplement No. 822 dated October 3, 1891 belongs to publications that inspire and open new horizons in the field of science. In this issue you will find a variety of interesting articles on the topics of physics, chemistry, astronomy and other scientific areas. The authors of this publications - various scientists and specialists sharing their research and discoveries with readers. Reading the pages of this book, you will immerse yourself in the fascinating world of scientific discoveries and detailed developments of complex scientific issues. This app will help you expand your knowledge and understanding of the world of science in the late 19th century. Scientific American Supplement #822 is a window into the past that reveals an incredible number of opportunities for studying and learning about modern science of that time."