Notebook PU-Mu 1050, Box 8, folder 6, B. H. Hill, II Surveys 1936–1937, p. 14 (1936–1937)

Page 14Scan 9 of 63

Apr. 19 1937

B. (cf. p. 5)	[empty]	Apr 13	[empty]	Apr 19
- L2	22-34	-24	[empty]	200 ft.
10 a	40-34	-23	[empty]	[empty]
10	90-56	45	[empty]	[empty]
M'	107-6	6-58	[empty]	[empty]
T4	144-40	[empty]	14.15	196 ft.
T³	219-11	8-58	[empty]	[empty]
T²	267-6	6-57	[empty]	[empty]
II²	315-12	.2	[empty]	[empty]
A	263-50	.40	[empty]	[empty]

measure	Apr 19	~~Apr~~ 15.16
B - T³	29.28	29.25
- T²	58.36	[empty]
- II²	29.19	29.23
II² - T²	44.49	44.47
- T³	[empty]	43.50
T² - T³	44.43	44.43
T³ - T⁴	59.52	[empty]

14. (6.50 NE of 14 a)

- 12	43.55	[empty]
- 13	55.59 +	241' = 73.46
.04 So. of 14 a	235-57	One of these	upper ft line
14 a	235-51	is wrong	be less than
15	304-15	[empty]
A	236.45	[empty]
1	280-14	c 230' = c 70.10

14-15 measures 41.39

Right page

Δ 15-14-12	∠ 15 = 55.56^1/2	14-12 = 83.08
[empty]	∠ 14 = 99.40	14-15 = 41.39
[empty]	therefore ∠ 12 = 24.23¹2	15-12 = 98.86

Drawing: geometric surveying network; labels: 15, 12, 13, 14, 14a, 41.39, 44.55^1/2, 11-1, 99.40, 12.4^1/2, 6.50, 24.23^1/2, 34.39^1/2, 113-16, 19.00, (83.08), (98.86), (73.79), (54)

Δ 14 . 14a . 15	sides 6.50 + 41.39
[empty]	∠ 14 = 68.24 (54)
∠ 14a = 68.24	[empty]
therefore a 15 = 8.48¹2	∠ 14a-15-13 = 53.44
Δ 14-15-13	53.44 - 8.48^1/2 = 44.55^1/2
∠ 15 = 44.55^1/2	\therefore ∠ 13 = 23-20
14 = 111.44^1/2	\therefore 14-13 = 73.79
14-15 = 41.39	(15-13 97.05)

65 figures hard to read~~struck~~ struck outadded written in above” jug ditto, and what it repeatsword reading not certain