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Scientific American 1899-12-09

ScientificAmerican1899-12-09.jpg Parents' Magazine 1937-10ThumbnailsScientific American 1902-03-29Parents' Magazine 1937-10ThumbnailsScientific American 1902-03-29Parents' Magazine 1937-10ThumbnailsScientific American 1902-03-29Parents' Magazine 1937-10ThumbnailsScientific American 1902-03-29Parents' Magazine 1937-10ThumbnailsScientific American 1902-03-29

The correspondence method of instruction. Illustrating department. Mailing department. An I.C.S. student experimenting. Power room. Examiners correcting papers. Textbook department.



Source: Steve Kirch, collector, and creator of a great website about SCIENTIFIC AMERICAN in the past

Restoration by: magscanner