Dodge, Mary Mapes, 1830-1905 · [New York : Scribner & Co.] · leaf 338
blown in clear water, but the filmis so delicate that it speedily breaks. The bub-bles will not form a mass, nor can one be sepa-rated from the water. To increase the colloidalcondition we may use soap and glycerin. Thesewe have found by repeated experiments to be thebest colloids for… … A MASS OF FOAM, TWENTY-FIVE FEET WIDE AND MORE THAN TEN FEET HIGH. fact, on the Mississippi River I have never ob-served foam to collect in any considerable quan-tity. I have often heard of the great accumula-tion of foam on the sea-coasts where wavesdash against rocky shores, and thought per-haps…
Children's literature
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