Abstract
American Journal of Science, September.—On the capture of comets by planets, especially their capture by Jupiter, by H. A. Newton. The full paper is not now given. The completed results will be noted in Our Astronomical Column as soon as they are published.—Pleistocene fluvial planes of Western Pennsylvania, by Frank Leverett. Some facts are stated which clash with certain conclusions drawn by Mr. P. Max Foshay in a paper entitled “Pre-Glacial Drainage and Recent Geological History of Western Pennsylvania,” which appeared in the November number of the Journal. From these it appears that the obstacles to a northward discharge of the Shenango, Mahoning, and Beaver are, on the whole, greater than those in the way of a southward discharge. In the Monongahela, Lower Alleghany, and the Ohio valleys, the available evidence all indicates southward discharge along the present course of the Ohio from the inler-Glacial period to the present time.—A method for the determination of antimony and its condition of oxidation, by F. A. Gooch and H. W. Gruener.— A method for the estimation of chlorates, by F. A. Gooch and C. G. Smith.—Dampening of electrical oscillations on iron wires, by John Trowbridge. The experiments lead to the conclusions that (1) The magnetic permeability of iron wires exercises an important influence upon the decay of electrical oscillations of high frequency. This influence is so great that the oscillations may be reduced to a half-oscillation on a circuit of suitable self-induction and capacity for producing them.
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Scientific Serials. Nature 44, 463–464 (1891). https://doi.org/10.1038/044463a0
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DOI: https://doi.org/10.1038/044463a0