- 1I — Introduction
- 2II | Innovations in Gunter’s Scale
- 3III — Richard Delamain’s Grammelogia
- 4IV — Controversy between Oughtred and Delamain on the invention of…
- 5V — Independence and priority of invention
- 6VI — Oughtred’s Gauging Line, 1633
- 7VII — Other seventeenth century slide rules
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