t- 2. The frame, which is fitted to an optical lantern, corrode when subjected to the action of water and tom, one-third full of water and incline it, as shown in carries an opaque plate having a circular opening, be- further renders the material coated waterproof. The the engraving, so that the… … ter of necessity that this alteration should be carried they would come under many influences, and it was out without interfering with the constant traffic of the tion and dispersion of light. The experiment may be on one of these he wished to dwell, that of photo- performed in the sunlight or by…
Erm · Improved · Ship · Photography · Exposition · Chicago · Cruiser · Columbian · Pamyat azova · Inch pipe · Scientific American · Horse power · Viking ship · Pivotally connected · Electric light · Trolley wire · Vessel stopping · Hydraulic wheel
Internet Archive · Public domain (published before 1931). Free to use for anything.
