The Civil engineer and architect's journal, scientific and railway gazette (1839)
London : [William Laxton] · leaf 334
1844.] THE CIVIL ENGINEER AND ARCHITECTS JOURNAL. m Yards. \ards. A F = 196-8954 AG = 163-5924 FO = 25B0187 GO = 250-8460 A C = 221-044r AO = 89-7677 B C = 148-2582 AT = 113-9160 F G = 130-0280 OT = 70-1342 Z OAF = 121= 58 31 -2 Z AOF = 40 43 IG ■8 Z A G F :r; 83° 22 12 Z AFG - 55^ 37 48 Z AFO -… … To find the radius of an arc q s, concentric with a given arc A B,to meet the sine B C, so that the difference of the radii A 5, maydivide rj s, tlie arc to be found into a given number of equal parts. (We are indebted to our vnhiable correspondent O.T.for the abovemethod of drawing a ciuquefoil…
Architecture · Civil engineering · Science
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