Dodge, Mary Mapes, 1830-1905 · [New York : Scribner & Co.] · leaf 440
inch long, the rest of the workis multiplication. Let us say in the present in-stance that 20 grains were found in the eighth ofan inch. Of course sand varies greatly, but thisnumber represents good fine sand. Multiplyingby 8 gives 160, the number of grains in a line awhole inch long; and squaring… … A MAGNIFIED VIEW OF SAND. Placed on cardboard ruled in squares, each one eighth of an inch.The sand is a little coarser than that used by the author of the ac-companying article. tity in the hollow of the hand contains nearly twoand a half million grains. Ones admiration forthe wonders of nature…
Children's literature
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