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A New Phototropic Compound of Mercury - Nature
Nature· 17 hours agoIN an attempt to prepare the phototropic compound, dimercuric-diiodo-disulphide., described by Dr. Ray (Jour. 1917, T, 101–109), we accidentally discovered a new phototropic ...
University Education in the United States - Nature
Nature· 18 hours agoThe total enrolment in these State institutions for the year 1917–18 was 110,900, as against 244,231 in the corresponding private institutions. In 1918–19 the lowest enrolment ...
The Claude Process for Ammonia Synthesis - Nature
Nature· 18 hours agoThe work of compression of a gas at constant temperature varies as the logarithm of the pressure, so that if the work of compression from i to 200 atm. At high pressures, however, the percentage ...
A Visual Illusion - Nature
Nature· 18 hours agoTHE visual illusion described by Mr. Turner and by Prof. Boycott in NATURE of October 7 and 14 was described by me in NATURE of October 18, 1917 (vol. c., p. 126), and commented ...
Plant Pests and their Control - Nature
Nature· 18 hours agoA few honorary correspondents scattered throughout the country forwarded monthly statements relating to diseases and pests in their own particular areas, and at the close of the year these were ...
West Indian Zoology1 - Nature
Nature· 18 hours agoSo satisfactory were the results that Prof. Nutting's staff themselves suggested a further expedition, this time to the Lesser Antilles. Preparations were commenced in 1916, *o little was the ...
Prof. J. W. Heslop Harrison, F.R.S. - Nature
Nature· 18 hours agoSince that date, the University of Durham has conferred upon him the title of professor emeritus, so giving due honour to one of her most illustrious north country sons. In 1917< ...
Birds of Ecuador1 - Nature
Nature· 18 hours agoTHIS is a companion volume to the “Distribution of Bird-Life in Colombia,” forming vol. 36,1917, of the Bulletin of the American Museum. It differs from many other valuable ...
Sex-determination in Trialeurodes vaporariorum - Nature
Nature· 18 hours agoHargreaves (1914) and Williams (1917), investigating the same species in England, found, however, that in this country unfertilised eggs laid by virgin females exclusively ...
European Corn Borer in North America - Nature
Nature· 19 hours agoTHE European born borer (Pyrausta nubilalis) was first found in the United States in 1917, among sweet corn near Boston, Mass., where it was infesting an area of at least ...
