The manuscript is written in the following hands.

1. Text, folios 1-2, 23-24. Formal, often unusually large for a medical hand; bold, strongly seriffed.

2. Relieves hand 1 at intervals, folios 1-2, 23; distinguishable by its crooked ‘s’.

3. Text, folio 24 recto, column b, line 1-end. Small.

4. Text, folios 3-22. Ovoid ‘d’. Changes style (notably ‘g’) and ink at folio 18; a face is amusingly drawn in the initial 'D' here, almost the only decoration in the manuscript.

5. Folios 2 verso, ?24 recto.

6. Folios 1 verso, 2 verso. Crude.

7. Folio 5 recto (‘amen’).

The contents (text) are as follows.

(i) Illegible (Folio 1 recto.)

(ii) On diets. Beginning (acephalous) ‘somilis no ni eili ineoch maethas na lenna’. First complete section begins “De auria pasione .i. d’oilemnaib galair na cluas”. Breaks off folio 2 verso, column b, last line, ‘gen gu teagaid sin a ceadoir tegaid an airrdeana’ in section beginning ‘Dieta cairdicorum’. Resumes (folio 23 recto, column a, line 1) ‘olta in da mogaib .i. na meadg ⁊ na im’; first complete section begins ‘De periplemonicorum dieta’. Ends (folio 24 recto, column a, line 22: ‘Calmaigidh a neart ⁊ iseadh aderaid na fisighidha gu faidiguid saeghal in duine acht minetair bas dorinne. Finit. Amen’. Hippocrates cited. Marginalia: ‘Meamraigh gach rann ina lbr bain min macam dan . . .’ (folio 1 verso, hand 6); ‘An biadh dhul sa ghaile og ni holc sin oir ata se slan ara chionn maille to..... Ni misi me fein och a Dhe mo chor an bfuar tu an peleir a Dhomhnaill Oig mhic Briain’ (visible under ultra violet light, folio 2 verso, hand 5); ‘Ansocoir do denamh duit ⁊ na caith biadh go imarchach gon codail dona. . . . .’ (folio 2 verso, hand 6); ‘Leabhar ana bhuil d. . . . . . ar l(eigheas) . . . .’ (folio 24 recto, hand ?5). (Folio 1 verso, column a, line 1.)

(iii) Passion of Christ as revealed by the Blessed Virgin Mary to Saint Anselm. Beginning (acephalous) “tre ainndlige ⁊ tre duanmarbadh do leigin amach ⁊ ni dubairt Pil[oid] ann sin fos Isa do mhilleadh ⁊ d’eirgidar na h-iubail ann sin co foluaimneach”, cf. Skerrett, ‘Fiarfaidhi San Anselmuis’, page 171. Ends (folio 8 verso, line 2) ‘curab i sin sdair fiarf[aid] San S[elm] do Muire ar an pais conuigi sin. Finit. Amen. Seaan O Concubair do cuir an Gaedhilg hi ⁊ t[abrad] gach aen l[egfas] b[ennacht] ar anm’. See Adv.MS.72.1.1, folio 4 verso, column a, line 1. (Folio 3 recto, line 1.)

(iv) Homily on the commandments. Beginning “Leghthar andsa naemadh caibidil .xx. do leabur Matha co tainig duine og d’innsaighi an tigearna neamda da fiarf[uide] de cinnus do gebadh se an flaithemhnus n[em]dha”. Cf. Atkinson, ‘Passions and homilies from Leabhar Breac’, page 245. (Folio 8 verso, line 4.)

(v) ‘Giolla Brighde Mac Con Midhe. Deasgaid gach uilc in t-uabar’, 39 quatrains. (Folio 18 recto, line 1.)

(vi) Giolla Brighde Mac Con Midhe. ‘La braith in coimdi in cedain’, 42 quatrains. Folio 20 verso, margin: ‘fromadh peinn’ (hand 4). (Folio 19 verso, line 1.)

(vii) ‘Muirn Magn(us)a’, 24 lines. Imperfect, the upper part of the leaf having been irregularly torn off. First of a series of poems in various metres in praise of Maghnus Ó Conchubhair (? king of Connacht, died 1293: see O’Grady, ‘Catalogue of Irish manuscripts in the [British Library, formerly the] British Museum’, volume 1, page 487). Each except the last last (folio 22 verso, line 9) ends with a formal dúnadh. (Folio 21 recto, line 1.)

(viii) ‘Mian Magnusa a moladh’, 10 lines. (Folio 21 recto, line 7.)

(ix) ‘Mac righ ri ar sluagh’, 8 lines. (Folio 21 recto, line 10.)

(x) Poem almost entirely lost due to mutilation of leaf. Ends ‘o marcsluagh i mhagh’. Dúnadh is Magnus. (Folio 21 verso, line 1.)

(xi) “Fear Cruachna os cách”, 46 lines. (Folio 21 verso, line 4.)

(xii) ‘Tren me ar Magnus’, 46 lines. (Folio 22 recto, line 1.)

(xiii) ‘Teamair teach Magnuis’, 44 lines. (Folio 22 recto, line 11.)

(xiv) ‘Magnus mallroscach’, 28 lines. (Folio 22 verso, line 1.)

(xv) ‘Magnus mac Concubair’, 40 lines. Incomplete? (Folio 22 verso, line 9.)

(xvi) Folio 23 recto, column a, line 1, see folio 1 verso, column a, line 1.

(xvii) ‘Gleic . . . . . . . Dia is don eg’, 21 quatrains. Ascription illegible (?‘ . . . . . . . . . ain .cc.’). Quatrains 16–21 extend across page. (Folio 24 recto, column b, line 1.)

(xviii) “Gofraidh Ó Cluma. Fada go tuighim mo teach”, 5 quatrains. Cf. McKenna, “Aithdioghluim Dána”, volume 1, page 231. Incomplete, folio 24 verso being illegible. (Folio 24 recto, bottom of the page.)