For a number of years the publishers of SCIENTIFIC AMERICAN also published a SUPPLEMENT, which carried longer articles on specific topics.
- Scientific American Supplement 1878 Volume VI Title 1934 visits
- Scientific American Supplement 1878-12-28 1480 visits
- Scientific American Supplement 1898-10-29 1428 visits
- Scientific American Supplement 1900-12-22 1769 visits
- Scientific American Supplement 1900-12-22a 1323 visits
- Scientific American Supplement 1902-01-25 1215 visits
- Scientific American Supplement 1902-11-15 1411 visits