Brearley, Harry Chase, 1870-1940, Ingersoll, Robt. H., & Bro · New York : Pub. by Doubleday, Page & Co. for Robert H. Ingersol & Bros. · leaf 362
256S- Encyclopedic Dictionary … the months with the passing seasons. Themonths are arbitrarily arranged to havealternately 29 days and 30 days. Thelength of the calendar year varies from 353 days to 385 days. Mohammedan—Based on a lunar year of 354 days divided into 12 lunar monthswhich are alternately 29 and 30 days inlength.…
Time measurements · Clocks and watches
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