Report on the re-levelling in 1915-17 of a line from the English Channel to the Bristol Channel originally levelled in 1837

Report on the re-levelling in 1915-17 of a line from the English Channel to the Bristol Channel originally levelled in 1837 - London HMSO 1917 - 4p. 31cm. - Ordnance Survey Professional Papers (4) new series .

Concludes that there is no evidence of a change in the level of ground.


England--886-

522.16 $2 18