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George Arents Collection, The New York Public Library. "Do you know what causes the waves, and why the sea is salt?" The New York Public Library Digital Collections. 1850 - 1959. https://old-digitalcollections.nypl.org/items/510d47e2-1d88-a3d9-e040-e00a18064a99
George Arents Collection, The New York Public Library. "Do you know what causes the waves, and why the sea is salt?" New York Public Library Digital Collections. Accessed October 7, 2026. https://old-digitalcollections.nypl.org/items/510d47e2-1d88-a3d9-e040-e00a18064a99
George Arents Collection, The New York Public Library. (1850 - 1959). Do you know what causes the waves, and why the sea is salt? Retrieved from https://old-digitalcollections.nypl.org/items/510d47e2-1d88-a3d9-e040-e00a18064a99
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(still image)
Do you know what causes the waves, and why the sea is salt?, (1850 - 1959)
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