- NLW MS 11708B.
- Ffeil
- [1821x1850].
Rhan oPant-coy Manuscripts
An arithmetic example and exercise book based partly, according to a note on the first page, on 'Treeby's Astronomy' [i.e. S. Treeby: The Elements of Astronomy ..., London, 1821, or Upwards of seven hundred questions in Treeby's Elements of Astronomy ... [London, 1822]].