*BEGIN 0122_1978_Laredo
;Nigel Dibben writing
;Approx declination for 1978
;*CALIBRATE DECLINATION 6
; ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
; 11/12/13 - Adjust magnetic declination so centre line
; surveys are aligned to Eur 79 grid rather than True North.
; Applying correction of -0.4 to original magnetic readings in
; Survex aligns to Eur79 grid.
; ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++

*CALIBRATE DECLINATION 5.88; (6.28-0.4)
2	1	10	291.5	2
3	2	9	328	6
3	4	8.5	101	0
5	3	11.2	91.5	0
6	5	8.4	25	-6
6	7	20.5	308	0
7	8	6.5	308	2
8	9	3	239	0
10	6	10.5	298	-8

12	11	12.3	300	4
13	12	17.9	291	2
14	13	14.3	310	-7
15	14	13.8	279	-4
16	15	12.5	338	5
17	16	7.4	311	-10
18	17	7.8	303.5	-4
19	18	3.6	290	-42
20	19	9.7	321	1
21	20	4.9	283	4
22	21	22	250	5
23	22	3.5	323.5	-3.5
24	23	13.1	331	2.5
25	24	12.3	354	8
26	25	17.3	287	-7
27	26	20.4	346	-7
28	27	27.1	286.5	-1.5
29	28	18	325	7
30	29	15.2	291	-6
31	30	11.9	248	2
32	31	19.6	304	-1.5
33	32	24.3	279	-11
34	33	10.7	237	0
35	34	8.5	237	1;length suspect
36	35	7.5	293	7
37	36	8.7	266	0
38	37	3.5	352	-37
39	38	4.7	346	36
40	39	3.5	192.5	10
41	40	1.4	-	UP
42	41	6.3	255	-16
43	42	5	271	1
44	43	6.2	312	15

45	33	10.8	249	-5
46	45	12.6	213	-31
46	6	5.4	318	1
47	46	5.6	277	-13;47=10???
48	47	17.1	299	-4.5
49	48	22.5	274	-9.5
50	49	30	294	17.5
51	50	26.7	339	8
52	51	17.5	345	3.5
53	52	20.3	6	22
54	53	9	30	30; bottom ladder



*END 0122_1978_Laredo