Brearley, Harry Chase, 1870-, Ingersoll, Robt. H., & Bro · New York, Pub. by Doubleday, Page & Co. for Robert H. Ingersol & Bros. · leaf 386
ens.And it was then an easy matter to markoff the bowl into equal divisions which theshadow would cross at equal intervals ofthe day. Of course, the track of the shadowchanged with the season of the year. Butit moved always as the sun moved, andjust as regularly, giving a true measureof the solar… … ♦&287S* Appendix E
Time measurements · Clocks and watches
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