The carpenters joynt-rule fitted with lines variously and generally useful in measuring and time
: As in arithmetick and geometry, superficial and solid measure. Brick-work and reducing it. The finding of heights and distances, both near and far off, the hour, and suns azimuth, particularly and generally for any latitude. Also the uses of the glasiers, the gaugers, and masons sliding rules, many ways. Also the use of a new gunners rule, with lines to find the weight of iron, lead, or stone, shor, the weight of powder, for more, true, or less fortified guns, of brass, or iron: with the cateridges length and breadth, convenient. The use of the 30 and 40 scales in architecture great or small, and to find the length and angles of hips, rafters, and purloins, in any kind of roof, square, taper, or bevelling at any pitch or pendicular. With the use of a box and magnetical needle, to find the hour and azimuth, easily and generally, with the variation of the compass, declination of plains, and miners use. By John Brown