United States. Weather Bureau, Cloud, W. S, Gregg, Willis Ray, 1880-1938, Jakl, Vincent Edward, 1880-, Lane, Russell Charles, 1893-, Samuels, Leroy Thomas, 1893- · Washington : Govt. print. off. · leaf 107
00446 (g) single-theodolite observation. A great deal of care d = 1010. 3 meters (h) should always be given to the plotting operation, for if h = 887. 58 meters (i) this is done in a careless manner the data resulting there- id,) tan e = 0. 87852 from will be considerably in error, and sometimes… … 47. — Plan of trlangulatlon showing relative positions of balloon at P when balloon is between ends of base line, and at P' when balloon is beyond either end of base line. It will be noticed that the values of d and Ji determined angles often exist. Tho difference between an actual by these…
Meteorology · Aeronautics in meteorology
Internet Archive · University of Illinois Urbana-Champaign · Public domain (published before 1931). Free to use for anything.
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