Hayes (Catalogue of Manuscript Materials) gives the scribe as Domhnall Ó Coinmhidhe (?), 17th century (?). This is the manuscript that Whitley Stokes calls Lord Crawford's Irish medical MS. It begins with a copy of our text, and Stokes prints the headings of some 118 of the Chapters in The Academy, May 16, 1896, pages 4057. In his paper of 1898, Stokes includes a medical glossary from this MS.