Unnumbered pageScan 25 of 87
Drawing: diagram with points E', E, E', W, T, etc. labels: x E to W of T_IV_ / 90° 22 1/2' / 21.10 / 16.58 / 28.45 / 3.85 / 180° / 195° 5' / 22.97 / (32.02) / 11.52 / E / 76.56 / E' / 4° 26' / (107.80) / W_W_ / W / E' / g / h / 11.70 / 80 in line of asces / of T_o_ T
For p 38-39
$Δ E' g W$ ∠ 15° 5' sides 11.52 + 22.97
| log S 15° 5' = | 9.41535- | |||
| - 11.52 | 1.06145 | |||
| 8.35390 | ||||
| + 22.97 | 1.36116 | |||
| S 31° 15' 23" = | 9.71506 | |||
| ∠ at IV (arg =: 133° 39' 37") | ||||
| C 11.52 | 1.06145 | |||
| - S 15° 5' | 9.41535 | |||
| 1.64610 | ||||
| Sin 133° 39.37 | 9.85931 | |||
| = 32.02 = | 1.50541 | |||
| line E'-IV | ||||
| + Sin 15° 5' | 9.41535 | |||
| IV-h = 8.33 = | 0.92076 | |||
| Cos 15° 5' | 9.98477 | |||
| E'-h = 30.92 = | 1.49018 |
In Δ E' E TV \angles 4° 26' (29.15 - 24.49 p 38), 164° 55 sides 76.56 + 32.02
| Log 32 02 = | 1.50541 | ||
| + S 164° 05' [written under: 15° 55] | 9.41535 | ||
| 10.92076 | |||
| - S 4.° 26' | 8 88817 | ||
| 2.03259 | |||
| = 107.79 |
Margin right: x W. end of Z IV
in Δ E - h - IV E-h = 76.56 + 30.92 = 107.48 h-IV = 8.33 Tan \angleE = 8.33 ÷ 107.48
| Log 8.33 = | 0.92076 | ||
| 107.48 = | 2.03133 | ||
| Log Tan | 8.88943 | ||
| ∠: | 4° 25' 57" |
| Sin - | 8.88814 | ||
| 8.33 + | 0.92076 | ||
| 2.03262 | |||
| \therefore E-IV | = 107.80 |
Right page
Drawing: diagram with points C, D, E, II. labels: C / (124.47) / 75.40 / 262.24 / 12.35 / II / (138.27) / 5.15 / E / 117 / 185.74 / D
$Assuming$ \angles II C E + II E C correct as recorded 5° 40' + 5° 15' ∠ II \therefore = 169.5
| 2.41952 | |||
| S. 169° 5' | 9.27734 | ||
| 3.14218 | |||
| S 5.° 15' | 8.96143 | ||
| 2.10361 = 126.94 | |||
| S 17° 15/5° 40 | 8.99450 | ||
| 2.13668 = 136.99 |
Thus if the 5° 40 + the 5° 15 are both correct \angleC D E is out 1^° 23' or more A C D L [illegible] at Damiet 104· 38· 28/67· 38· 30 C = 38.20\ \ D = 80^° 12\ \ h = 61.28
| 185.74 - | 136.99 = | 48.75 | 1.68797 | + | ||
| ” 185.74 - | + " | 322.73 | 2.50884 | - | ||
| 17.45 | 9.17913 | |||||
| 162.15 | 81.7 1/2a | 0.80 647 | ||||
| 9.98560 | ||||||
| 44.15.28 | 1.68797 | |||||
| 125-10.30 | 9.99478 | S 81° 8' | ||||
| 37. 4 30 | 1.68275 | |||||
| 9.84137 | S. 44 | |||||
| 69.24 | = | 1.84038 |
| 117 = | 2.06819 | ||||
| 61.28 | 9.94376 | 61^° 30'=9.94390 | 61^° 31' = 9.94397 | ||
| 2.12443 | 2.12429 | 2.12422 | |||
| 38° 20 | 9 79256 | 38.20 9.79256 | 38-17 9.79208 | ||
| 82-10 | 1.91699 | 82.58 = 1.91685 | 82.47 = 1.91630 | ||
| 80° 12 | 9.99362 | 80° 10 999352 | 80 12 9.99362 | ||
| 2.11805 | 2.11786 | 2.11784 | |||
| Ch | = 131.24 | = 131.18 | 131.17 | ||
| h E | 131.50 | 131.56 | 131.57 |
Taking 2nd solution of above three If 5° 15' correct at E then ∠ at C must be 5^° 52 1/2 If 5° 40 " C " E " 5^° 6 1/4'
Δ C h II\ \ Ch = 131.18\ \ \angleI = 61° 30\ \ \angleII = 112° 50\ \ C = 5^° 40
| 131.18 = | 2.11786 | |||
| S 112 50/67.10 | 9.96456 | C-II = 2.09720 | ||
| 2.15330 | S 5° 40 8.99450 | |||
| S 5° 40 | 8.99450 | II-h = 1.09170 = 12.35 | ||
| II-h = | 1.14780 = 14.05 | C-h" 9.99787 | ||
| S 61 30 | 9 94390 | 209507 | ||
| C. II = | 2.09720 = 125.08 | C-h' = 124.47 \\ h II E = 138.27 |
Drawing: diagram with points labeled h, II, E, C
65 figures hard to readstruck struck outadded written in above” jug ditto, and what it repeatsword reading not certain