+-----------+-------------+--------------+ | Element | Color Hot | Color Cold | |-----------+-------------+--------------+ | Aluminum | Colorless | Colorless | | | | | | Antimony | Colorless | Gray--Cloudy | | | | | | Barium | Colorless | Colorless | | | | | | Bismuth | Colorless | Gray--Cloudy | | | | | | Cadmium | Colorless | Gray--Cloudy | | | | | | Calcium | Colorless | Colorless | | | | | | Chromium | Reddish | Green | | | | | | Cobalt | Blue | Blue | | | | | | Copper | Dark Green | Brownish Red | | | | | | Iron | Red | Reddish | | | | | | Lead | Colorless | Gray--Opaque | | | | | | Magnesium | Colorless | Colorless | | | | | | Manganese | Colorless | Colorless | | | | | | Nickel | Colorless | Gray | | | | | | Silver | Colorless | Gray | | | | | | Strontium | Colorless | Colorless | | | | | | Tin | Colorless | Colorless | | | | | | Zinc | Colorless | Gray--Cloudy | ------------+-------------+--------------+ THE PRACTICAL METHODS OF ORGANIC CHEMISTRY AUTHORIZED TRANSLATION 12mo. Cloth. Price, $1.60, _net_ BY TRANSLATED BY LUDWIG GATTERMANN, Ph.D., WILLIAM SHAFER, Ph.D., _Professor in University_ _Instructor in Organic Chemistry_ _of Heidelberg._ _in Lehigh University._ * * * * * THE GUARDIAN. "The selection and judgment throughout is excellent. The book is a most useful, practical adjunct to any good text-book on organic chemistry." PHARMACEUTICAL REVIEW. "This is a book that should be in the library of every teacher of organic chemistry, and one which will no doubt be of great value to students in their second year of organic chemistry. Its chief peculiarity and merit is in the great stress laid on practical laboratory work.... It is permanently a worker's guide." NATURE. "Since the advance of organic chemistry in this country must, in a measure, depend on the nature of the available text-books, both the author and the translator deserve our thanks for providing us with a work such as the present one." * * * * *