ABSTRACTS of the PRIMARY LINES of the SECOND GEODETIC LEVELLING in ENGLAND & WALES by Colonel Sir Charles Close, KBE, CB, CMG, FRS Director-General of the Ordnance Survey Southampton 1921
[Described in detail in the 'Companion Volume' with an Alternate Index]
Primary Levelling lines (1912-1921): Index to Abstract
Lines of Levelling			Date of Levelling
From	To	Length (miles)	When Commenced	When Completed	Page in Abstract
Abergavenny	Brecon	22.8	January, 1914	June, 1914	46
Alfriston	Croydon	46.3	July, 1919	November, 1919	26
Arundel	Alfriston	37	August, 1919	January, 1920	25
Basingstoke	Wallingford	35	May, 1912	June, 1912	20
Boscastle	Grampound	37.4	April, 1915	October, 1915	6
Brampton Abbots	Abergavenny	24.4	June, 1913	January, 1914	47
Brampton Abbots	Suckley	25.1	January, 1913	June, 1913	40
Brecon	Llandovery	23.6	September, 1913	January, 1914	48
Bridford	Beer	30.6	September, 1916	April, 1917	6
Bridford	Yelverton	26.7	July, 1915	February, 1916	3
Bromsgrove	Warwick	25.4	March, 1913	July, 1913	38
Buckland	Sapperton	34.3	July, 1912	November, 1912	22
Bulmer	Northallerton	31	October, 1918	March, 1919	96
Buntingford	Clare	32.1	April, 1914	December, 1914	69
Carmarthen	Llandovery	29.6	August, 1913	January, 1914	48
Castor	Waltham-on-the-Wolds	35.6	March, 1914	August, 1914	64
Castor	Wicken	41	March, 1914	October, 1914	71
Church Stretton	Brecon	62	October, 1919	October, 1920	44
Clare	Ipswich	26.6	March, 1917	May, 1917	73
Cranford	Castor	25.7	February, 1916	June, 1916	63
Croydon	Windsor Castle	29.4	January, 1920	April, 1920	28
Daresbury	Wrexham	30.7	March, 1920	July, 1920	86
Daventry	Great Linford	27.6	April, 1913	October, 1913	31
Dorchester	Beer	35.4	May, 1917	November, 1917	7
Dorchester	Wimborne	31.5	October, 1912	March, 1913	10
Dulverton	Bridford	32.6	June, 1916	December, 1916	4
Dulverton	Torrington	30.1	December, 1917	May, 1918	4
Dunbar Circuit			October, 1913	December, 1913	110
Dunbar Tidal Observatory	Dunbar West	0.9	October, 1913	December, 1913	110
Dunbar West	Dunbar East		October, 1913	November, 1913	110
Dunbar West	Wester Broomhouse	2.5	January, 1914	February, 1914	110
Duns Common	Kelso	19.9	October, 1914	January, 1915	105
Duns Common	Wester Broomhouse	24.4	January, 1915	May, 1915	109
Fareham	Arundel	27.3	April, 1919	July, 1919	24
Fareham	Southampton	17	August, 1912	September, 1912	18
Fareham	Winchester	29.4	April, 1912	June, 1912	19
Felixstowe Circuit			July, 1917	July, 1917	74
Flax Bourton	Sharpness	30.7	November, 1912	May, 1913	24
Forcett	Wolsingham	22.9	March, 1918	June, 1918	98
Grampound	Liskeard	26.6	January, 1916	July, 1916	2
Grampound	Troon	21.3	September, 1915	December, 1915	2
Great Linford	Cranford	27.9	September, 1915	January, 1916	61
Great Linford	Hemel Hempstead	38.8	July, 1913	March, 1914	37
Great Linford	Wallingford	47	June, 1916	November, 1916	30
Greetland	Broomhead Moor	30.6	June, 1913	March, 1914	94
Greetland	Skipton	34.4	August, 1913	March, 1914	93
Hawick	Kelso	22.7	October, 1914	January, 1915	106
Hemel Hempstead	Buntingford	31.1	April, 1914	August, 1914	68
Hemel Hempstead	Windsor Castle	30.4	November, 1913	March, 1914	35
Hexham	Longhorsley	32	January, 1918	July, 1919	102
Hibaldstow	Matlock	61.9	September, 1919	December, 1920	79
Hibaldstow	South Cave	40.2	January, 1918	June, 1918	89
Ipswich	Felixstowe (FB 2093)	18.6	December, 1916	March, 1917	74
Kirkby Stephen	Penrith	27.2	April, 1914	July, 1914	108
Liverpool	Daresbury	26.1	October, 1919	February, 1920	84
Liverpool	Liverpool Tidal Station (FB2607)	3.1	September, 1919	October, 1919	85
Longhorsley	Belford	31	October, 1918	February, 1919	103
Macclesfield	Daresbury	28.1	December, 1919	March, 1920	83
Madron	Newlyn (Tolcarne)		February, 1916	April, 1916	1
Matlock	Broomhead Moor	30.6	September, 1919	March, 1920	95
Matlock	Macclesfield	32.6	July, 1919	March, 1920	81
Matlock	Melbourne	27.5	November, 1912	February, 1913	80
Melbourne	Nuneaton	33.4	June, 1913	January, 1914	66
Melbourne	Stafford	32.6	February, 1919	September, 1919	75
Melbourne	Waltham-on-the-Wolds	33.3	February, 1914	June, 1914	65
Mordington	Belford	18.9	September, 1916	December, 1916	104
Mordington	Duns Common	14.6	March, 1919	May, 1919	105
Navenby	Hibaldstow	28.1	April, 1918	August, 1918	78
Newcastleton	Hawick	21.8	August, 1914	October, 1914	106
Newlyn (Tolcarne)	Paul		January, 1916	January, 1916	1
Newlyn Circuit			January, 1916	April, 1916	1
Newlyn Tidal Observatory BM	Newlyn (Tolcarne)	1.2	May, 1915	January, 1916	1
North Petherton	Dulverton	32.7	February, 1915	August, 1915	9
North Petherton	Flax Bourton	33.3	December, 1912	June, 1913	16
Northallerton	Forcett	26.1	October, 1917	February, 1918	97
Oswestry	Church Stretton	31.2	January, 1920	May, 1920	88
Paul	Sancreed		January, 1916	January, 1916	1
Penrith	Wetheral	21	December, 1914	March, 1915	108
Ribblesdale	Kirkby Stephen	29.3	July, 1914	October, 1914	100
Sancreed	Madron		January, 1916	February, 1916	1
Sapperton	Campden	31.1	March, 1915	August, 1915	34
Sapperton	Sharpness	24.2	September, 1912	November, 1912	23
Sharpness	Brampton Abbots	36.4	December, 1912	June, 1913	41
Skipton	Ribblesdale	25.6	August, 1914	December, 1914	101
Skipton	Wetherby	27	July, 1918	December, 1918	92
South Cave	Bulmer	33.3	June, 1918	October, 1918	90
Southampton	Southampton (Tide Gauge - Empress Dock)	2.2	April, 1921	May, 1921	11
Southampton	Southampton (Tide Gauge - Town Quay)		February, 1922	February, 1922	11
Southampton	Wimborne	38.8	September, 1912	October, 1912	10
Southampton	Winchester	13.5	November, 1919	February, 1920	12
Stafford	Church Stretton	47.3	March, 1919	November, 1919	76
Suckley	Bromsgrove	25.4	January, 1913	March, 1913	39
Suckley	Church Stretton	43.9	January, 1914	July, 1914	42
Thornford	Dorchester	18.8	November, 1912	March, 1913	8
Thornford	North Petherton	27.5	November, 1912	March, 1913	8
Torrington	Boscastle	34.1	March, 1915	September, 1915	5
Troon	Newlyn (Tolcarne)	15.7	October, 1915	December, 1915	1
Upton Lovell	Flax Bourton	44.3	August, 1912	December, 1912	15
Wallingford	Buckland	25.8	May, 1912	June, 1912	21
Waltham-on-the-Wolds	Navenby	28.7	June, 1917	September, 1917	77
Warwick	Campden	26.8	May, 1915	September, 1915	33
Warwick	Daventry	22.5	March, 1913	June, 1913	33
Warwick	Nuneaton	24	July, 1913	November, 1913	67
Wetheral	Newcastleton	31.1	August, 1914	December, 1914	107
Wetherby	Bulmer	32	December, 1918	July, 1919	91
Wicken	Clare	28.4	April, 1914	August, 1914	71
Winchester	Basingstoke	26.6	May, 1912	June, 1912	20
Winchester	Upton Lovell	45.8	June, 1912	October, 1912	14
Windsor Castle	Wallingford	27.4	November, 1913	January, 1914	29
Wolsingham	Hexham	24	September, 1918	January, 1919	102
Wolsingham	Kirkby Stephen	37	June, 1918	October, 1918	99
Wrexham	Oswestry	24	August, 1919	December, 1919	87
Yelverton	Liskeard	23.9	April, 1916	August, 1916	3