Notes/Description |
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Orthography is in accordance with Bombay Government Official List (Bombay Places and Common Official Words)
Conventional Signs. Trigonometrical Stations ▲ Intersected Points and Traverse Stations ○ State Boundaries ♁ State Boundaries ~~ Village Boundaries ‑‑‑‑‑ Edge of forest clearances ☁ Heights above mean sea level determined trigonometrically thus 1984 Indicated heights of Contours thus ○1200. The Vertical interval between the contours of this map (Surveyed by the water level) is 25 feet.Pahlias or In Memorian stones ✝ The positions of points shown thus ● have been fixed by plane table, and their heights determined Trigonometrically. The Linear values are derived from the measured length of the Sironj base, assumed as log. feet 4.5844824, through the Karachi Longitudinal Series.
The heights are referrible to mean sea level at Okha Tidal Station on the Gulf of Cutch.
The latitudes are referrible to that of Madras Observatory, taken as 80° 17' 21 to which a correction of - 2' 30 must be applied to reduce to the most recent value, viz : 80° 14' 51 Index to adjoining sections |