. Carnegie Institution of Washington publication. - c '53 to 03 & 40 03 "c S 30 20 10. MgClj, Depth 20mm. FIG. 1.—Wave-lengths. 80 70 60 o 1 50 S 40 o M cS 30 20 10 MgCI2, Depth 10 mm. FIG. 2.—Wave-lengths. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Carnegie Institution of Washington. Washington, Carnegie Institution of Washington

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Keywords: ., bookauthorcarnegie, bookcentury1900, bookdecade1900, bookyear1902