Ordnance Survey's Levelling of Great Britain

[2GL Abstract] [2GL Transcription]

		ORDNANCE SURVEY =============== RE-LEVELLING OF LONDON Commenced January, 1931 ======================= ABSTRACTS of SECONDARY LINES (giving values in advance of publication, on the Newlyn datum, for use with existing large scale maps) BY BRIGADIER H ST J L WINTERBOTHAM, CMG, DSO, ADC Director-General of the Ordnance Survey, SOUTHAMPTON ----------- 1932
		Title Page | Introduction | Index (transcribed below) | Map FB List (sourced from the abstract), see also the London Index which has started from a different source and includes L plates,
Pair		Lines of Levelling		Date of Levelling	Page in Abstract
		Brentford to Harrow-on-the-Hill		Oct,31-Oct,31	7
		British Museum to Ware		Apr,27-Feb,31	8,9,10
		British Museum to Tilbury		Feb,31-Jul,31	11,12,13
		Croydon to British Museum		Aug,31-Aug,31	14,15,16
		Croydon (East) to British Museum		Apr,27-Feb,31	17,18,19
		Chelmsford to British Museum		Jul,31-Oct,31	20,21,22,23, 24
		Dagenham to Plumstead		May,31-May,31	25
		Enfield to Ilford		May,31-May,31	26
		Greenwich to Snodland		Jun,28-Aug,28	27,28,29,30, 31
		East India Dock to Greenwich		Apr,31-Apr,31	32
		Hounslow to Hampton		Sep,31-Sep,31	33
		Hatfield to British Museum		Feb,31-Feb,31	34,35
		Hendon to Enfield		Apr,31-Apr,31	36,37
		Ilford to Barking		Jun,31-Jun,31	38
		Rickmansworth to British Museum		May,27-Feb,31	39,40,41
		Snodland to Godstone		Sep,20-Dec,20	42,43,44
		Surbiton to British Museum		Jul,31-Aug,31	45,46
		Staines to British Museum		May,31-Sep,31	47,48
		Stepney to Deptford		May,31-May,31	49
		Tilbury to Gravesend		May,31-May,31	50
		Willesden to Hendon		Nov,31-Nov,31	51
Secondary levelling in London ...