The art of projecting. A manual of experimentation in physics, chemistry, and natural history with the porte lumiere and magic lantern. (1892)
Dolbear, A. E. · Lee and Shepard · leaf 113
f the small tank take a beaker, 0* any vessel with square glass sides, and reflect beam upon the surface of the water as before. J2T The experiment may be varied by filling the vessel half full of water, then carefully pouring strong alcohol upon it to the depth of an inclwyQtvo, being careful not… … m va>'KTc'
Light · Magic Lantern
Internet Archive · Public domain (published before 1931). Free to use for anything.