Davies, Charles, 1798-1876 · New York, Cincinnati [etc.] American book company · leaf 256
68 5.787 93 10.812 19 .451 44 2.240 69 5.955 94 11.046 20 .500 45 2.531 70 6.125 95 11.233 21 .552 46 2.646 71 6.302 96 11.521 22 .605 47 2.761 72 6.480 97 11.763 23 .661 48 2.880 73 6.662 98 12.017 24 .720 49 3.004 74 6.846 99 12.246 25 .781 50 3.125 75 7.032 100 12.502 SEC. II.] H^STEUMEi^-TS.… … to £ o W 250 ELEMENTS OF SUKVEYING. [BOOK VII. The part of the instrument shown in Fig. 136, rests on atripod, to which it is made fast, and on which it is leveled bymeans of two leveling plates, such as are described in the accountof the Transit, Art. 177. The telescope rests on vertical supports…
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