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Precision of Levelling Operations1

Nature volume 88, page 520 (15 February 1912) | Download Citation



THE volume referred to below, containing the account and discussion of the precise levelling operations in India from 1858 to 1909, is published at an opportune time. The revision of the main lines of levels in this country and the establishment of really permanent bench marks is, we understand, a task that our Ordnance Survey intends to take up at an early date. The experience gained in the Indian work as recorded in this volume cannot fail to be of great value.

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