Excerpt from Introduction to the Rarer Elements
In attempting again to bring this work up to date for a new edition, the author has made numerous changes and additions throughout the book. The chapter on qualitative separation has been considerably enlarged by the inclusion of new analytical diagrams, together with some working directions and notes. The chapter on technical applications, also, has been much expanded by the addition of new material. A table of spectroscopic lines, and plates showing typical spectra have been added.
For helpful suggestions in selecting the spectroscopic material the author acknowledges his indebtedness to Professor H. S. Uhler of Yale University. His thanks are again due, also, to many of those whose kindness has been mentioned in prefaces to previous editions.
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