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3ooo A A B B C C a.m. Hour p.m. angle G Bahama Bank calculated Chronometers ciphers cols column of differences compared with Sherwin's Cosecant Cotangent Diff Tangent Cotangent Secant degrees and minutes Diff.l Difference of Latitude DifT Dirt Disl Dist Dep Dist Lat find the logarithm fourth figure fraction less given logarithm given number Gulf of Mexico Height Hour a.m. Cosine Hour a.m. Hour Hour p.m. Sine Hourp.M I.at io5i l.at Latitude and Departure left-hand column less than unity logarithm corresponding Logarithms of Numbers Meridional middle latitude Multiply Natural Sines number corresponding number of degrees number of seconds number sought oo3i oooo3 Parallax in Altitude places of figures prefix the index Prop quotient refraction Required the cube Required the log right hand rule Secant of 105 small table sought logarithm subtract the logarithm Table XXVII tabular logarithm ЗЗ З4 З5 ЗЗ.З