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An addition vnto the vse of the instrument called the circles of proportion, for the working of nauticall questions.

• GB 2014 WS-01-BUS-PRS/1/13b
• Item
• 1633

Part of Westminster School's Archive and Collections

Oughtred, William, 1575-1660

The circles of proportion and the horizontall instrument. Both invented, and the vses of both written in Latine by Mr. W.O. Translated into English: and set forth for the publique benefit by William Forster.

• GB 2014 WS-01-BUS-PRS/1/13a
• Item
• 1632

Part of Westminster School's Archive and Collections

Oughtred, William, 1575-1660

To the English gentrie, and all others studious of the mathematicks, which shall bee readers hereof. The just apologie of Wil: Oughtred, against the slaunderous insimulations of Richard Delamain, in a pamphlet called Grammelogia, or the mathematicall ring, or mirisica logarithmorum projectio circularis.

• GB 2014 WS-01-BUS-PRS/1/13c
• Item
• [1634]

Part of Westminster School's Archive and Collections

Oughtred, William, 1575-1660

Trigonometria Triangular canon logarithmicall The Seaman's practice

• GB 2014 WS-01-BUS-JJ/6/15
• Item
• 1657

Part of Westminster School's Archive and Collections

Oughtred, William, 1575-1660