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of the atmosphere for periods as great as 7 days. At the end of that time, the volume had decreased to 2 9 cc., and 46.27 per cent. of the alcohol and 6.6 per cent. of the iodine initially present had been lost. The iodine concentration in the residual liquid was considerably greater than the iodine concentration in the original tincture.
J. S. H.
Coating of the Apple.--H. S. ~/[ARKLEY, STERLING B. HENDRICKS, AND CHARLES E. SANDO (.Tour. Biol. Chem., 1932, xcviii, IO3-IO7) have examined the petroleum ether extract of the wax-like coating of the apple. The bulk of the extract was normal nonacosane (C~9H60) ; a secondary alcohol, Io-nonacosanol, was also present. Ketones were not present in isolable quantities. J. S. H.
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James Woodhouse and the Synthesis of Ammonia.--JAMES WOODHOUSE (1770--1809) was a graduate of the University of Pennsylvania-in both arts (1787) and medicine (I792). He was elected professor of chemistry in the medical school of the University, when Joseph Priestley declined that honor in I795, and
## 776 CURRENT TOPICS. [l. F. I. was described as the unfailing remedy for laziness and a drowsy, tired, sleepy feeling. For indigestion, dizziness, sick headache, numbness, or chills, kidney or bladder troubles, weakness, stimulates and purifies the blood." The so-called remedy was found to consi