Of Quadrant Triangles; the way to enter
Circles, or Semi-circles; how the Center
Stands ever fixt, how that every line
Direct, or oblique, circular, or trine
Hath still its ending; how to take the height
Of any blazing bearded Star by night.
I taught thee Musicks harmony to know,
To keep true time, where thou shouldst rest, and how:
Learn’d thee likewise thy notes, large, long, & brief,
Prickt Minom, with a Crotchet, and the chief