Page 4 p.90Scan 41 of 53
D - D' 31.47 m 149.38½ Tri S 157.21 199.44 7.27½
204.4 1.01.36½ 161.42
204.4 405
24.5 D' - D 19° 47' 157.31½ F 153.15
F-D' 3.37.27 O 45.8 } 36 15'
405.8 337.37 67.41
226
46.33½
163 127
-40 163.60 x cos. 405 -20 127.82 x cos. 307 291.42 60 290.80
99746 - 00254 99852 - 00148
Drawing: diagram; labels: D, 312, 42.22, 31.47, E, 4.11, D', 290, B, 133.26½, 42.22, 4.11, 179.59¼
4.11 B
133.26½ A 31.47
<D 42.22½ C 312.
c = a/Sin A Sin A+B
312 2.49415 Sin C 9.82865 2.32280 Sin A 9.86098 2.46182
289.6
22.27 62.58 85.25
337.33 247.33 90
Drawing: diagram; labels: A, 31.47, 4.11, A, 312, 290, (225.11), 337.33, (135.11), 90, 85.25 (310 36), 85 25'?, Mag N
65 figures hard to readstruck struck outadded written in above” jug ditto, and what it repeatsword reading not certain