ScientificAmerican1920-11-13.jpg Scientific American 1920-11-06ThumbnailsScientific American 1920-11-20Scientific American 1920-11-06ThumbnailsScientific American 1920-11-20Scientific American 1920-11-06ThumbnailsScientific American 1920-11-20Scientific American 1920-11-06ThumbnailsScientific American 1920-11-20

A chain bucket machine that digs, shreds, and scatters peat. Also, "The state and farmer" and "Solving the labor problem".