Scientific American 468 June 19, 1909. … ''Everything for the Experimenter" 1999 Ruby St. Rockford, ill. lower plane and about a foot above it, changing direction of the waves as pro- this seat and a foot rest being located jected. A simple example will illustrate We will ship you a 10 DAYS FREE TRIAL upon a pair of inclined braces…
Feet · Patents · Apparatus · Tube · Device · War department · Scientific American · Great lakes · Front edge · Sea speed · Metal ties · American june · Los angeles · Typewriting machine · White star
Internet Archive · Public domain (published before 1931). Free to use for anything.