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Before the blowpipe the mineral fuses very easily to a brown liquid but gives no flame reaction for calcium. It gives strong bead reactions for vanadium. It is easily soluble, with apple green color, in HNO3, HCl, and dilute H2SO4. Upon the evaporation the solution gives a red or brown residue. In potassium hydroxide melanovanadite is easily soluble with brownish color.

Editorial Note: This issue of the PROCEEDINGS, those immediately preceding, and those immediately to follow, have been seriously delayed by the nation-wide printers' strike which began on May first, 1921.

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Copyright, 1921, by the National Academy of Sciences

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Entered as second-class matter June 21, 1920, at the postoffice at Easton, Pennsylvania, under the act of August 24, 1912, Acceptance for mailing at special rate of postage provided for in section 1103, Act of October 3, 1917. Authorized June 18, 192es Price per annum, $5.00

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