Scientific American, Vol. 29, No. 9 (August 1873)
An issue of the weekly Scientific American, published by Munn & Co. in New York in August 1873 for inventors, mechanics and manufacturers tracking new patents. The wood engravings mix perspective views of machines on brick footings with lettered plan and sectional diagrams of gearing, valves and boilers, giving designers cutaway mechanisms, toothed wheels and flanged bolt circles rendered in fine line and stipple.
