SCIENTIFIC AMERICAN, New York, March 23, 1872  This 16 page issue is in nice condition and contains illustrations of the latest inventions of the day including the following inventions and/or prints: Brainerd, Minnesota Railroad Bridge - Surface Blower - Wagon Wheel - Electric Battery & much more. These illustrations also have text that goes along with them. Very interesting advertisements as well, back in the day when many of the normal things we use today were just being invented.