The sea-man's grammar and dictionary, explaining all the difficult terms in navigation: and The practical navigator and gunner: in two parts. : I. Most plain and easy directions, to build, rigg, yard, and mast any ship whatsoever. With the manner of working of a ship in all weathers: --and how to manage a fight at sea:--also the charge and duty of every officer in a ship, and their shares -- and the use of the petty-tally. II. An abstract of the art of gunnery, (or shooting in great ordnance and morter-pieces): wherein the principles of that art are plainly taught, both by arithmetical calculation, and by tables ready calculated -- with the compositions for the making of several fire-works useful in war, both at sea and land. --And an apendix [sic] how by several geometrical ways to take heights, depths, and distances, accessible or inaccessible. (1699)
Smith, John, 1580-1631 · London; : Printed for R. Mount, at the Postern on Tower-Hill, · leaf 184
2 eee! The Sea-mans Grammar. Tor, if you multiply 175 by 60, the Produé& will be rosoo,. which divide by 72; the quotient will’be 14569, thatis almoft 146 Inches, which is, 12 foot 2 Inches for the height of the May-pole K L, required. | rd ae … “¥ Et PQ be fome Strudure, ftanding upright upon plain. ify Ground, whofe height yourequire. = am "Go untofome convenient Court,Yurd,Garden, or other piece of level Ground adjoyning to the building to bemeafured, then ‘take your Square in both your hands, holding i#perpendicu- far, which, you may…