Inside Out Library · Explore

Scientific American, Vol. 42, No. 9 (1880) (1880)

leaf 7

An illustration from Scientific American, Vol. 42, No. 9 (1880), 1880, leaf 7
ut the entire distance tra- Our cousins across the water are so unaccustomed to the down tothe cement. This warm and dark passage had veled by the platen, and therefore of necessity works slowly; sight of fast trotters that perhaps it is not surprising that served as a retreat for the rats who… … pieces of sheet iron of a size suf- “taken up,” and the machine ficient to cover each hole com- is constructed on the _ inter- pletely. Then I placed several changeable plan. By employing handfuls of cotton at the bottom of the opening in such a a set of valves shown in the middle of the engraving,…

Internet Archive · Public domain (published before 1931). Free to use for anything.

More pictures from Scientific American, Vol. 42, No. 9 (1880)

More like this