The book "Scientific American Supplement, No. 492, June 6, 1885" consists of a collection of interesting articles and materials that open the reader to the fascinating world of science. In this issue you will find the most up-to-date information about scientific discoveries and achievements of this period. This book is an excellent source of information for anyone interested in the science, technology, and discoveries of the 19th century. Under the authorship of various scientists and experts, this edition will raise your knowledge to a whole new level and offer an interesting view of the world.