The Quantitative Determination of Boric Acid in Tourmaline.
Thesis prestened to the Faculty...of the University of Pennsylvania...for the Degree of Doctor of Philosophy.
Philadelphia, Avil Printing 1898. 40 S. Gr.-8°. Orig.-Umschlag (gestempelt).
Turmalin. - "...prestened by George William Sargent, Bellwood, PA." (Titel). - Titelblattrückseite mit Dank an E. F. Smith.
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