A new Volume of the SCIENTIFIC AMERICAN ' commences about the middle of September in each year. It is a journal of Scientific, Mechanical, and other improvements; the advocate of industry in all itB various branches. It is published weekly in a form suitable for binding, and constitutes, at the end of each year, a splendid volume of over 400 pages, ; with a copious index, and from five to six hundred I original engravings, together with a great amount of practical information concerning the progress of in- j vontion and discovery throughout the world. ' The Scientific American is the most widely oireula- i ted and popular journal of the kind now published. I ItB Editors, Contributors, and Correspondents are , among the ablest practical Bcientiflo men in the : world. ! The Patent Claims are published weekly and are j invaluable to Inventors and Patentees. | We particularly warn the publio against paying | money to Travelling Agents, as we are not in the habit of furnishing certificates of agenoy to any one. ! Letter* should be directed (post-paid) to : MUNN& CO.: 128 Fulton street, New York Terms ! Terms! Terms ! j One oopy, for One Year $2 " Six Months *1 j Five copies, for Six Months $* Ten Copies for Six Months foi $8 Ten Copies for Twelve Months, $16 Fifteen Copies for Twelve Months, $22 T#enty Copies for Twelve Months, 128 Southern and Western Money taken mt par fot ] rabsoripttoni, or Port Oille* fltunpi taken t th lr j fall value