The book "Scientific American Supplement, No. 841, February 13, 1892" is a collection of interesting articles from various branches of science, which offers readers to delve into the updated discoveries and research of the time. In this issue, the authors consider the current issues and problems of their era through the prism of scientific research. Thanks to the variety of topics and the analysis of the latest scientific discoveries, readers will have the opportunity to see the wider context and development of science during that period. "Scientific American Supplement, No. 841, February 13, 1892" is not only a collection of articles, but also a kind of journey into the world of knowledge of the 19th century, which will interest historians, scientists and science lovers.