A NEW departure of some little interest has been recently taken in America in the publication by the United States Hydrographic Department of a new chart, or diagram, for finding readily by a simple ...
IN the issue of NATURE published on October 24 last (vol. cii., p. 155), there appeared an account of an ingenious chart devised by Mr. G. W. Littlehales, of the United States Hydrographic Department, ...
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