Gwyddorion y grefydd Gristianogol, wedi eu hegluro i'r gwannaf eu deall a'u cymmhwyso tuag at yr ymarweddiad.

Abstract

Translation of: The principles of Christian religion explained to the capacity of the meanest. Lacks title page; title from caption on p. 1. Numerous errors in pagination. Imperfect: stained, torn with slight loss of text. Reproduction of the original in the Cardiff Central Library.