Manual of Instructions for the Survey of the Mineral Lands of the United States
Manual of Instructions for the Survey of the Mineral Lands of the United States
United States General Land Office
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o By reference to the above table the surveyor will observe that the times between Nov. 1 and 15 are greater than 8»» 24™; consequently the culmination for one day earlier, Nov. 6, will be used; see directions on page 99; also section 313. ^ From Part II, Table V, opposite Cth day of month and under "3.94«»»." cTo subtract, take 1 day from Nov. 7 and add its equivalent, 24»», to 8»» 24™, making Nov. 6, 32»» 2*n (which is the time expressed by Nov. 7, 8»> 24™); then subtract in the usual manner.... d See last clause of footnote, page 104 [Page 47 hereof]. «In case the Hour Angle comes out greater than 11^ 68™, subtract it from 23^ 56.i™. See example 4, above. /The Hour Angle being less than 11^ 58™, the Azimuth is west; see precepts, top of Table VII. 46 DIFFERENT OBSERVATIONS OF POLARIS. 314. To establish the meridian of any station and test the accuracy of courses derived from the sun, the deputy must use one or more of the following methods: 1. By upper culmination.
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