Dodge, Mary Mapes, 1830-1905 · [New York : Scribner & Co.] · leaf 688
. These thinstrije are more transparent and darker than theneighboring, thicker, and whiter ice. —C. A. WHY DOES THE TUMBLER TRAVEL ? Cambridge, Mass.Dear St. Nicholas : I have found that if you take asmall, light tumbler, say a measuring-glass, and, smearingsome very smooth surface with water,… … a light tumbler on a pane of wet glassover a bowl. If the smooth surface is exactly level and thetumbler is placed on it without any side impulse,it will not move; but if the smooth surface is slanting even a little, or if the tumbler receives aside push as it is carelessly or quickly placed onthe…
Children's literature
Internet Archive · UNC Libraries · Public Domain Mark 1.0. Free to use for anything.