Scientific Am.4/12/1879 Women and Pottery $15.00 Scientific Am.5/3/1879 New York Worlds Fair $15.00 Sci.Am.5/10/1879 Clevelands Elec. Lighting $15.00 Scientific Am.5/24/1879 Manufacture of Wire $15.00 Scientific American-1/52-Oldest Roads of USA $15.00 Scientific American-6/52 Plant Cancer $15.00 Scientific American-5/52-Stone Age Hunters $15.00 Scientific American-4/52 Schizophrenic Art $15.00 Scientific American-3/52-Logic Machines $15.00 Scientific American-2/52-Mans Genentic Future $15.00 Scientific American-1/50-Heart Surgery $15.00 Scientific American-10/50-Prejudice $15.00 Scientific American-11/50-Man Here to Stay? $15.00 Scientific American-12/51- $15.00 Scientific American-1/52- Audobon Art $15.00 Scientific America,October.1922 $15.00 Scientific American,Perpetual Night Creatures $15.00 Scientific American,3/12/1864,Baling Press $15.00 Scientific American,3/19/1864,Telegraph switc $15.00 Scientific American,6/11/1864,Hoisting Appara $15.00