Scientific American
THE MOST POPULAR SCIENTIFIC PAPER
IN THE WORLD
Established 1845.
Weekly, $3.00 a Year; $1.50 Six Months
This unrivalled periodical is now in its FIFTY-SIXTH YEAR, and, owing to its ever increasing popularity, it enjoys the largest circulation ever attained by any scientific publication. Every number contains sixteen large pages, beautifully printed, handsomely illustrated; it presents in popular style a descriptive record of the most novel, interesting and important developments in Science, Arts and Manufactures. It abounds in fresh and interesting subjects for discussion, thought or study. It provides material for experiment at home and in the laboratory, and it enables the intelligent reader to keep informed as to the industrial and scientific development of the country. To the inventor it is invaluable, as every number contains a complete list of all patents and trade marks issued weekly from the Patent Office. It promotes industry, progress, thrift and intelligence in every community where it circulates.
The Scientific American should have a place in every dwelling, shop, office, school or library. Workmen, foremen, engineers, superintendents, directors, presidents, officials, merchants, farmers, teachers, lawyers, physicians, clergymen—people in every walk and profession in life, will derive satisfaction and benefit from a regular reading of The Scientific American.
As an instructor for the young it is of peculiar advantage. TRY IT.—Subscribe for yourself—it will bring you valuable ideas; subscribe for your sons—it will make them manly and self-reliant; subscribe for your workmen—it will please and assist their labor; subscribe for your friends—it will be likely to give them a practical lift in life. Terms, $3.00 a year; $1.50 six months. Specimen copies free. Remit by postal order or check.