> as lemmas

1603 A. Top Oliue Leafe sig. D2 The first is discerned by exalting the line Constant and transparence of the leafe. The second, by raysing of the line Constant, and counterpoyse of the stroke Diuers and Maister line. The third, by exalting the stroke Diuers to the head of the line Constant, the Constant and the Maister lines desubtending it.

1772 J. Robertson Elem. of Navigation II. (ed. 2) 6 Parallel to each curtin and face draw lines, within, at the distances from the master-line, of 7 feet, 8 feet, 12 feet, and 18 feet.

1833 H. Straith Treat. Fortif. 3 The measurements..are calculated..from the cordon, which..is called the magistral or master line.

1962 M. Kennedy & T. G. Samworth Checkering & Carving of Gunstocks 22/2 Get yourself and the cradle into a comfortable position, so that when you grasp the spacer and lay one side in a master line, the whole tool and your forearm is in line with the master line.

2001 R. O. Naess Optics for Technol. Students xix. 300 Establishing a master line with the line scope involves the following steps: 1. placing the center of the telescope's objective lens, with its cross line target, on the master line; [etc.].