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LE Anonymous
Instructions for Using all the Improved Sliding Rules, with A Description of the several Lines upon them, etc. ...
The Mensuration of Superfices and Solids is likewise made perfectly easy, with Round, Square, and Unequal sided timber; ... . Birmingham: Printed by W. Watton & Co., n.d. [1860s]. Bound with Anon., Instructions for Using the Locomotive Engineers' (or "Hawthorn's") Improved Slide Rule and Anonymous, Instructions for the use of the "Routledge" Engineers' Improved Slide Rule. Shelved under Anonymous, 'Instructions for using the locomotive Engineers'….. Lewis Evans Collection
[1924-0]
186-?