V. Details of modern mapping used in compiling part IV
1.
Series 1501. For sheet numbers see paragraph IV. 2. All sheets are edition 1. MRLG ref. B1(14A).
2. Carte de l'Afrique de l'Ouest at 1:200,000 scale, published by I.G.N., Paris, (Annexe de Dakar). MRLG ref. E25(51).
Sheet NC-31-XXII,
ND-31-IV,
2nd edition, Oct 1968 published 1956
-XI, -XII,
1st edition, April 1962 1st edition, Feb 1962
ND-32-VII,
-VIII,
-IX,
-X,
-XI,
-XII,
1st edition, Nov 1962 1st edition, Dec 1962 1st edition, Nov 1962 provisional base, 1961 1st edition, Dec 1962 1st edition, Dec 1962
1st edition, Nov 1962
(Nigeria-Niger Boundary not shown)
3.
ND-33-VII,
Nigeria, 1:100,000,published by Federal Surveys, Nigeria, MRLG ref. E39(41) or E39(41A) (asterisked sheets).
Sheet 1
edition 1,
1970
2
edition 1,
1969
3
edition 1,
1970
8
edition 1,
1969
18
1st edition,
1964
*
21
ed. 2-FN,
1962
26
edition 1,
1969
27
edition 1,
1969
*
37
ed. 2-FN,
1960
48
edition 1,
1970
No other sheets held (October 1971) show the boundary
4.
Nigeria, 1:50,000,published by Federal Surveys, Nigeria, MRLG ref. E39(21)
Sheet 1-SE,
ed. 1,
1968
2-SW,
ed. 1,
1968
8-SW, 26-NE,
ed. 1, 1968
ed. 1, 1968
-SE,
ed. 1,
1968
-SW,
ed. 1, 1968
3-NE,
ed. 1,
1968
-SE.
ed. 1, 1968
*
-SW,
ed. 1, 1968
-SE, ed. 1, 1968
* 4-NW, 1st ed. -FN, 1963
8-NW, ed. 1, 1968
48-NW,
-SW,
ed. 1, 1968
71-NW,
ed. 1, 1968
-SW,
ed. 1, 1969
27-NW,
1st ed. -FN, 1961
ed. 1,
1968
-NE, ed. 1, 1968
Asterisked sheets do not show the boundary.
5. Nigeria, 1:250,000,published by Federal Surveys, Nigeria, series FN 12, MRLG ref. E39(62).
Sheet 3,
1st ed. -FN, 1962
9,
1st ed. -FN, 1962
10,
1st ed. -FN, 1957
11,
1st ed. -FN, 1962
12,
1st ed. -FN, 1961
13,
1st ed. -FN, 1961
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