Cylchgrawn y Gymdeithas er Taenu Gwybodaeth Fuddiol
The monthly Welsh language periodical of the Society for the Diffusion of Useful Knowledge that published articles on a number of subjects such as the natural world, geography, biographies and literature. The periodical was edited by cleric and poet, John Blackwell (Alun, 1797-1840).
Publication Frequency: Monthly
Publication Language: Welsh
Publication Location: Llanymddyfri [Llandovery]
Publisher Details: D. R. a W. Rees
First Available Issue: 1834
Last Available Issue: 1835