The naval architect's and shipbuilder's pocket-book of formulae, rules, and tables and marine engineer's and surveyor's handy book of reference (1884)
Mackrow, Clement · London, C. Lockwood and co. · leaf 22
22. To find the development of any ffii-en poition of a seginentof a sphere. Let ABC (fig-. 23) be the middle sectionof the segment, and cfg in the plan (fig. 2-i)the portion to be developed ; Fig. 25.bisect AB (fig. 23) in E, and c set M^ the jDerpendicular EC ;divide the arc AC into anygiven…
