Abstract
THE author states that this booklet is a compilation written as an aid to the rising generation of mariners. Considered from this viewpoint we have no hesitation in saying that it will be found interesting and useful. Weather is closely connected with barometric pressure, air and sea temperature, state of sky, &c.; but the predominant factor is pressure. Several chapters are devoted to these subjects and to the construction and use of synoptic and synchronous weather charts; the advantage to sailors of charts of monthly average barometric values is referred to specially. The author makes it quite clear that he holds decided opinions on several subjects, some of which differ from generally accepted views, e.g. in the chapter dealing with cloud forms and signs he considers it difficult to accept as a working hypothesis the supposed connection between clouds and dust particles, at least many leagues from land. He also urges simplification in cloud nomenclature, "for under the present involved divisions clouds are doubtless as often described erroneously as they are correctly.” The supposed influence of the moon on weather is justly ridiculed, and the work is brought up to date by useful details of the advantages derived from radio-telegraphy.
Weather Signs and How to Read them.
For Use at Sea. By W. Allingham. Pp. v + 117. (Glasgow: James Brown and Son, 1912.) Price 2s. net.
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Weather Signs and How to Read them . Nature 91, 449 (1913). https://doi.org/10.1038/091449c0
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DOI: https://doi.org/10.1038/091449c0