Y nitro-glycerine (powder oil) - Pa beth ydyw?
Subtitle: Darlith a draddodwyd ar y testun uchod yn marchnadfa Blaenau Ffestiniog, ar nos Iau, Awst 19, 1869
By: Gan y Parch. Taliesin T. Jones, F.G.S.
Publisher: D.J. Thomas, argraffydd, &c.
Published: 1869
Place of publication: Ffestiniog
Language: wel
Number of pages: 24