Scientific American, Vol. 64, No. 26 (June 1891)

1891 · 14 pictures

Patents · Munn · Railroad · Phosphate · Scientific American · Arcturus · Express money · Angina pectoris · South Carolina · Phosphoric acid · Rack bar · Large number · Beecher statue · Electric motor · American supplement

Internet Archive · Public domain (published before 1931) · More from this library