. Carnegie Institution of Washington publication. retention of water, have part of the present work, •epetition. It is ion that borax !on in an open periment^r then vatec thi. tely 3lf. ' 3St. •hod riture. 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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