The following table gives the differences thus found at iJO points along the line between Portishead and Axmouth, the height, in every instance, coming out greater from the series of levels returning towards Portishead. No. of Station Miles from Height...
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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