Note 28 — VI. OUGHTRED’S GAUGING LINE, 1633
Reading edition
S. J. Rigaud, Correspondence of Scientific Men of the 17th Century, Oxford, Vol. I, 1841, p. 17.
Reading edition
S. J. Rigaud, Correspondence of Scientific Men of the 17th Century, Oxford, Vol. I, 1841, p. 17.