Arithmetic book of 'Pyll Glan Conwy',
- NLW MS 12004B.
- Ffeil
- 1800 /
Rhan oJ. T. Evans Manuscripts
A mutilated manuscript of John Jones ('Pyll Glan Conwy') containing arithmetic and numeration rules and exercises, and a few transcripts of Welsh poetry (among them a fragment of the interlude 'Pedair Colofn Gwladwriaeth' by Thomas Edwards, 'Twm o'r Nant') and collects.
'Pyll Glan Conwy'.