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Scientific American, Vol. 37, No. 23 (1877) (1877)
leaf 4
re hypothesis of Laplace on the drawn the blue parts. The formation of the globe, sup- colors on these bases to be poses the existence of large used would be gamboge, car- masses of iron occurring with inorganic carbon in the heart mine, verdigris, and Prussian blue. Next, with a sharp of the… … compared -to- the trilobites? throw the older theory. © 1877 SCIENTIFIC AMERICAN, INCInternet Archive · Public domain (published before 1931). Free to use for anything.
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