Geodesy : the eastern oblique arc of the United States and osculating spheroid / by ChasASchott . / /, // Webb o 00 00 -00 —o 08 :Marriott 39 41 3708 —0-17 Hill 75 01 10-92 +0-24 .Azimuth Stabler 233 17 .... 09-98 Probable error of a single of a direction ( /). and A. ),<;,= zto^-gi. Number of positionsof circle, V. Stabler, Montgomery County, Maryland. July 17 to Septeml)er 3, 1869. 75 direction theodoliteNo. I. C. O. Boutelle, observer. Instrument 16-76 meters above ground. Hill Peach Grove Bull Run Maryland Heights Sugar Loaf Webb Soper Probable error of a singl
Geodesy : the eastern oblique arc of the United States and osculating spheroid / by ChasASchott . / /, // Webb o 00 00 -00 —o 08 :Marriott 39 41 3708 —0-17 Hill 75 01 10-92 +0-24 .Azimuth Stabler 233 17 .... 09-98 Probable error of a single of a direction ( /). and A. ),<;,= zto^-gi. Number of positionsof circle, V. Stabler, Montgomery County, Maryland. July 17 to Septeml)er 3, 1869. 75 direction theodoliteNo. I. C. O. Boutelle, observer. Instrument 16-76 meters above ground. Hill Peach Grove Bull Run Maryland Heights Sugar Loaf Webb Soper Probable error of a single observation of a direction (D. and A. ),e,— ±: I^oS. Number of positionsof circle, VII. 0 00 00 -00 39 41 37 -08 75 01 10-92 89 30 15 -co 122 09 5730 23,3 17 59 •92 36 -91 II -16 0 00 00 -QO —0 -24 59 76 63 40 03 -06 -0-37 02 -69 87 11 16-57 +0-04 16-61 131 27 54-59 +0-06 54 -65 134 09 42-34 +0-48 42-82 297 19 37 -68 +0-01 37 -69 342 13 41 -17 0 -00 41 -17 CofiHt (in(L Geodetic Survey, 1901. The Eastern ObHtjue. Arc. No. 10 WfeiA HeigJits Suxfor Loaf Ml Ma rah (til Fork. Kpfit In hind \ Marriott THE KENT ISLAND BASE Triangulatioii (o the Westward and Soiithwaid Staiiiio Milfs l^nhttrco hi>n o 10 2 .10 lO ^0 Kilometers lo (1 10 ;;o :o HC !W«HISKrt BASE LINES AND BASK NETS. 65 Ahstrads of resulting horizon/a/ directions observed and adjusted at stations forming the extension ofthe Kent Island base net to the westward and southward—coutinuerl. Peach Grove, Fairfax County, Virj^inia. October 11 to November <S, i<S69, and July to Auj^ust 15,1870. 75 direction tlieodolite No. i. CO. Boutelle, observer. Telescope \y~i2 meters aboveground. O^iects ^^^^^ ^^^P ^^. 0 1// // // Mount Marshall o 00 00 00 —o •36 59 64 Bull Run 4 36 2966 -j-oiS 29-84 Maryland Heights 58 32 34 06 —o -50 33 -56 Sugar Loaf 79 59 52 76 +0 06 52 82 Stabler 143 47 23 85 +0 -35 24 -20 Causten 187 26 02 78 .... ^ Hill 194 50 24-85 +0-27 25-12 Probable errorof a s
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