The book "Scientific American Supplement, No. 299, September 24, 1881" is a publication that offers the reader a unique opportunity to delve into the world of scientific discoveries and achievements of the 19th century. Its pages collect the most interesting articles on various topics: from the latest inventions and research in the field of physics, chemistry and biology to reviews of technological achievements of their time. The authors of the various materials included in this publication are well versed in their subject matter and present information in an accessible form. Readers will be able to raise new questions for themselves, discover unexplored fields of science and technology, as well as feel the spirit of dynamic development and progress. "Scientific American Supplement, No. 299, September 24, 1881" is an important source of knowledge for anyone interested in the history of science and technology, and who wants to expand their horizons in these areas.