'A breife abstract, exposicon, and true demonstration of all parts and thinges belonginge to a Ship and the practique of Navigation' by H.M. (pp. 15-174), with a list of contents (pp. 3-10) and preface (pp. 11-14).
Also in the volume (pp. 1-2) is a leaf in the hand of Evan Evans (ieuan Fardd) from a history of Sir Rhys ap Thomas, which appears to belong between pp. 156 and 157 of NLW MS 2038D.

A volume compiled, [1710s]-[1790s], by various hands, containing poems, songs and commonplace entries, together with miscellaneous printed material including song-sheets and newspaper cuttings. Many of the items, which have been pasted on or inserted between the leaves, are connected with Brogyntyn and Wynnstay. The volume was originally used for exercises in navigation.