Abstract
American Meteorological Journal, October.—The meteorological services of South America, by A. L. Rotch. In the Argentine Republic there are now five stations of the first order, forty of the second order, and one hundred rain stations. The first of the Annales was published in 1878, and dealt with the climate of Buenos Ayres from observations since 1801. In Uruguay there is one observatory of the first order, at Villa Colon, near Montevideo, and in 1890 a Meteorological Society was established, and publishes a monthly review. In Brazil, observations were made at Rio de Janeiro, since 1825, but no record of them is to be found until 1844; from this time summaries have been regularly published. A Central Meteorological Department was established in 1888 in connection with the bureau of the Navy, but the climatological service has not yet been organised.—The forecasting of ocean storms, &c, by W. Allingham. This paper was prepared for the International Meteorological Congress held at Chicago in August last. It deals more particularly with the storms of the North Atlantic, and the author shows that at present any attempt to forecast them from America is not very successful. Nevertheless, the Meteorological Office of Paris continues to receive and publish daily reports from the United States and Canada, as well as from steamers arriving at American ports from the Atlantic.—Sun-spots and Auroras, by Prof. H. A. Hazen. The author has laid down curves of all the sun-spots measured on the Greenwich and India photographs from 1881 to 1888, and also the auroral numbers recorded in the United States, and shows that auroras and sun-spots are not concomitant or coincident phenomena. For the purpose of inquiring into the annual range, the auroras and sun-spots for twenty-three years have been summed for months. There is a remarkable correspondence in these results; both phenomena show a maximum in April, and the second maximum occurs in September for auroras, and in October for sun-spots. Prof. Hazen considers that the investigation of sun-spots and auroras is the most promising line that can be taken in a study of the possible effects from some cosmical force upon our atmosphere.
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Scientific Serials. Nature 51, 45–46 (1894). https://doi.org/10.1038/051045b0
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DOI: https://doi.org/10.1038/051045b0