Pacific Southwest Region © Reproduced from the holdings of the National Archives TRIANGLE Quad, A Ovad. B. Coral-Finnac{le Pinnacle - Rintt 00000039 Aoman -Engebi Engebi ~Coral Ovad, D- JOB N2 640 SIDE. CHECKS q 0.0000028 0.00000 /0 Cora!-NorthBase Aoman-North Base _ Quad. C ENGINEERS Bb 0.00002 98 0.0000 2.98 0.0000298 L a 0.000000! 0.0000 036 0.0000014 0.0000242 0.000 0274. 0.0000 /62 8 d Boga ~Cora/ 0.000 0060 0.000062 Boga - Tetteir 0.00000 67 0.0000240 7eiteir -Engeb/ 00000274 0.0000334 Sand -North Base g 0.0000052 Sand - Parry 0.0000037 2 0.0000337 0.00002/0 Farry -Coral 0.0000 044 0.0000 175 Actual difference of @ side; Allawoble difference maxtmum —Ffour that entering Side. times the tabular corresponding TO one setond s/n rhe logarithm angle in logarithms of length of the Sine of the tnto sma/fest the computation oF ae HOLMES & NARVER