Inside Out Library · Explore
Scientific American, Vol. 65, No. 20 (1891) (1891)
leaf 3
to vibrate when the is a rack, the teeth of which are engaged by a pin slid- being extinguished, the ceiling and sides -of the caves machine is at work, when the air or other material is ing in a keeper on the frame, whereby the incline of seemed studded with diamonds, an effect due to drawn into… … hygienic results are uniformly good, pounds to the square inch, © 1891 SCIENTIFIC AMERICAN, INC.Internet Archive · Public domain (published before 1931). Free to use for anything.
More pictures from Scientific American, Vol. 65, No. 20 (1891)
More like this
