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Homer Henry Helmick

The Determination of Thorium in Monazite Sand by an Emanation Method...
by Homer Henry Helmick ~ Paperback

This is a reproduction of a book published before 1923. This book may have occasional imperfections such as missing or blurred pages, poor pictures, errant marks, etc. that were either part of the original artifact, or were introduced by the scanning process. We believe this work is culturally impor...

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