ography. was patented through the Scientific American Patent Agen- He placed upon a window sill the microscope he employs cy, January 30, 1877. The new feature is the screw fan, A, for the purpose, which had over the top a small wooden box projecting in advance of the plow on a horizontal shaft,… … fans, steam being furnished is seen with the eye. Matters LITTLE'S SNOW PLOW. to it from the boiler. K and thus regulated, M. Fayel takes L are cutters attached to the the microscopical preparation plow for cutting the snow when packed hard. gums. It was with some difficulty that Mr. Bartlett got…
Internet Archive · Public domain (published before 1931). Free to use for anything.
