... lower when I returned, than it was at my setting out. But as the height of this point is the same in both cases, the error must, of course, be thrown on the distant point, or station at which the returning levels commenced, which reverses the first...
Tables of Heights in Sind, the Punjab, N.W. Provinces and Central India ... - Page 14
de India. Great Trigonometrical Survey - 1863 - 196 pages
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