A commonplace book of the period 1826-8 largely in the hand of Robert Roberts, Tyn y Gors, Hafod Elwy, Nant y glun [Nantglyn], Denbighshire. It includes prognostications of Erra Pater based on the incidence of New Year's Day; receipts and IOU's; hymns; pence multiplication tables; calligraphic exercises; 'penillion telyn' and other free-metre poetry; memoranda relating to Tyn y Gors tithes; a list of sermon texts; astrological diagrams and prognostications based on the phases of the moon and the incidence of thunder ('llywodraieth y lleaud ar gorph dyn ag anifail yn ol ei simudiad trwyr Deuddeng arwudd ynghyd ar nodau' and 'wrth anser [sic] y digwyddo Tranau'); 'englynion' addressed to Peter Roberts; land tax accounts; etc.