Scientific American magazine bundle full year 1989 -see contents pics GC science

Scientific Inventions inc. U. S. Navy First Metal Airplane A-6455 in 1922

Popular Science Monthly Magazine / December 1936 / Inventions / Mechanics

Scientific American~magazine~1988~December~science~physics~geology~biology

Scientific American Magazine December 1999 Science in 2050 Robots Space Genes

Scientific American 1981 Dec - Laser weapons, Jupiter & Saturn

Scientific American "What Science will know in 2050" December 1999 1ssue

Popular Science June 1925 - Inventions, Discoveries, Radio, Aviation