We use cookies to provide you with a better onsite experience. By continuing to browse the site you are agreeing to our use of cookies in accordance with our Cookie Policy.

Skip to main content

    Features

    Launching of the Great Caisson for the Brooklyn Terminus of the East River Bridge

    The Disposal of Sewage

    By John Darby

    What is Energy?

    The Butterfly

    By Edward C. H. Day

    What Inventors Say

    Adulteration of Paints

    By Henry E. Colton

    Sirups for Soda Water

    Editorial Summary- July 9, 1870

    Gas as Fuel

    The Progress of Chemistry in 1870

    Steam Road Rolling

    Hydrophobia and Dog Muzzling

    The Stevens Institute of Technology

    Scientific Intelligence- July 9, 1870

    Progress of Invention Abroad

    City Railroad Cars

    The New York Dock Commission--The Principal Plans Submitted

    Answers to Correspondents- July 9, 1870

    Recent American and Foreign Patents- July 9, 1870

    Official List of Patents- July 9, 1870

    Applications for the Extension of Patents- July 9, 1870

    Departments

    • Letters

      Correspondence- July 9, 1870

    • Recommended

      New Books and Publications- July 9, 1870

    • Departments

      Business and Personal- July 9, 1870

    Purchase To Read More

    Already purchased this issue? Sign In to Access
    Select Format
    July 09, 1870

    See the World from a Different Perspective

    Subscribe to Scientific American MIND

    Subscribe