000 00690cam a22002055a 4500
001 L154855
008 120124s1917 xxk f 000 0 eng d
035 _a(Sirsi) u154855
041 0 _aeng
050 0 4 _a522.16 $2 18
110 1 _aOrdnance Survey
_91860
245 0 0 _aReport on the re-levelling in 1915-17 of a line from the English Channel to the Bristol Channel
_boriginally levelled in 1837
260 _aLondon
_bHMSO
_c1917
300 _a4p.
_c31cm.
490 0 _aOrdnance Survey Professional Papers
_v(4) new series
520 _aConcludes that there is no evidence of a change in the level of ground.
651 4 _aEngland
_y886-
690 _aMeasurement
_96256
942 _n0
999 _c113200
_d113200