38
Art of Travel.
very great service to him. (See " Measurement of distances to inaccessible places.")
TABLE of Chords to Radius of 1000.
Deg.
i
6 7
8
9
10
11 12 13 14 15
16 17 18 19 20
21 22 23 24 25
26 27 28 29 30
31 32 33 34 35
36 37 38 39 40
41 42 43 44 45
|
Chords. Deg. |
Chords. 11 Peg. Chords, |
Deg. Chords. |
|
017, |
46 |
781 |
91 |
1427 |
136 |
1854 |
|
035 |
47 |
798 |
92 |
1439 |
137 |
1861 |
|
052 |
48 |
813 |
93 |
1451 |
138 |
1867 |
|
070 |
49 |
829 |
94 |
1463 |
139 |
1863 |
|
087 |
50 |
845 |
95 |
1475 |
140 |
1879 |
|
105 |
51 |
861 |
96 |
1486 |
141 |
1885 |
|
122 |
52 |
877 |
97 |
1498 (: |
142 1 |
1891 |
|
139 |
53 |
892 |
98 |
1509 ~~ |
143 1 |
1897 |
|
157 |
54 |
908 |
99 |
1521 ~~ |
144 |
1902 |
|
174 |
55 |
924 |
100 |
1532 |
145 |
1907 |
|
192 |
|
939 |
101 |
1543 |
146 |
1913 |
|
209 |
57 |
954 |
102 |
1554 |
I 147 |
1918 |
|
226 |
I 58 |
970 |
103 |
1565 |
148 |
1923 |
|
244 |
59 |
985 |
104 |
1576 |
149 |
1927 |
|
261 |
60 |
1000 |
105 |
1 1587 |
150 |
1932 |
|
278 |
61 |
1015 |
106 |
1591 |
15 |
1936 |
|
296 |
62 |
1030 |
107 |
1608 |
1.52 |
1941 |
|
313 |
63 |
1045 |
108 |
1618 |
I 153 |
1945 |
|
330 |
64 |
1060 |
109 |
1628 |
154 |
1949 |
|
347 |
I 65 |
1075 |
110 |
1638 |
155 |
1953 |
|
364 |
66 |
1089 |
111 |
1648 |
156 |
1956 |
|
382 |
67 |
1104 |
112 |
1658 |
157 |
1960 |
|
399 |
68 |
1178 |
113 |
1668 |
158 |
1963 |
|
416 |
69 |
1133 |
114 |
1677 |
159 |
1967 |
|
433 |
70 |
1147 |
115 |
1687 |
160 |
1970 |
|
450 |
71 |
1161 |
116 |
1696 |
161 |
1973 |
|
467 |
72 |
1176 |
117 |
1705 |
162 |
1975 |
|
484 |
73 |
1190 |
118 |
1714 |
163 |
1978 |
|
501 |
74 |
1204 |
119 |
1723 |
164 |
1981 |
|
518 |
75 |
1218 |
120 |
1732 |
165 |
1983 |
|
534 |
76 |
' 1231 |
1 121 |
1741 |
j 166 |
1985 |
|
551 |
77 |
I 1245 |
122 |
1749 |
; 167 |
1987 |
|
568 |
78 |
j 1259 |
123 |
1758 |
168 |
1989 |
|
585 |
79 |
1272 |
124 |
1766 |
169 |
1991 |
|
601 |
I 80 |
1286 |
125 |
1774 |
170 |
1993 |
|
618 |
81 |
1299 |
126 |
1782 |
171 |
1994 |
|
635 |
82 |
1312 |
127 |
1790 |
172 |
1995 |
|
651 |
83 |
1325 |
128 |
1798 |
173 |
1996 |
|
668 |
' 84 |
1338 |
129 |
1805 |
174 |
1997 |
|
684 |
85 |
1351 |
130 1813 |
175 |
1998 |
|
700 |
86 |
1344 |
131 1820 |
176 |
1999 |
|
717 |
87 |
1377 |
132 1827 |
177 |
1999 |
|
733 |
88 |
1389 |
133 1834 |
178 |
2000 |
|
749 |
89 |
1402 |
134 1841 |
179 |
2000 |
|
765 |
90 |
1414 |
135 1848 |
180 |
2000 |
Triangulation.-Measurement of distance to an inaccessible
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