The contents are as follows.

(i) Calendar in red and black. A number of Scottish saints are included, such as Kentigern (13 January in red), Duthac (8 March), Kessog (10 March), Columba (9 June) and Ternan (12 June). 8 July has 'Dedicatio eccliesie glasguensis' in red, and 2 November 'Dedicatio ecciesie aberdonensis' in black. (Folio 2.)

(ii) Sequences of the Gospels. (Folio 8.)

(iii) 'Obsecro te' and other prayers and hymns, mostly to the Virgin. They include 'Ave cuius conceptio' (H Walther, ‘Initia carminum ac versuum medii aevi posterioris latinorum’, number 1904), 'Ave virgo gloriosa stella sole clarior' (cf. U Chevalier, ‘Repertorium hymnotogicum’, number 2214), 'Virgo templum trinitatis' (Walther, number 20561), 'Ave gloriosa virginum regina' (Chevalier, number 1828) and the prayer 'O intemerata'. (Folio 11 verso.)

(iv) The Passion according to St John xviii, 1-xix, 42 (Folio 31.)

(v) 'Iesu dulcis memoria' (Walther, number 9837), and other prayers. (Folio 38.)

(vi) 'lesus ex deo genitus', a summary in verse of the life of Christ (Chevalier, number 9728), followed by prayers to the Trinity and at the elevation of the host (Folio 42.)

(vii) Prayers on the Passion. (Folio 47 verso.)

(viii) 'Missa de nomine ihesu' and prayers to the Holy Spirit. (Folio 57.)

(ix) Penitential Psalms. (Folio 65.)

(x) Litanies. The usual litany and prayers are followed by litanies of the saints for the third, fourth, fifth and sixth days of the week and Sundays. The saints include Columba, Machar, Ninian and Kentigern. (Folio 70 verso.)

(xi) 'Gloria in excelsis' and Nicene creed. (Folio 80.)

(xii) Prayer on the seven words from the Cross and prayer attributed to St Augustine, 'Dulcissime domine Ihesu Christe vere Deus'. (Folio 81.)

(xiii) 'Stabat mater dolorosa' (Chevalier, number 19416). (Folio 85.)

(xiv) Prayer to the Five Wounds (Chevalier, number 1869). (Folio 86.)

(xv) 'Stabat mater iuxta crucem' (Chevalier, number 19412). (Folio 87.)

(xvi) Verses of St Bernard. (Folio 88.)

(xvii) Suffrages of the saints. They include Thomas Becket, Ninian, Cuthbert and Margaret of Scotland. (Folio 89.)

(xix) Prayers to be said at Communion. (Folio 101 verso.)

(xx) Instructions for the celebrant at Mass, according to the use of Sarum. (Folio 105.)

(xxi) Prayers to the Trinity, etc. (Folio 110.)

The prayer book is written in brown ink in littera textualis with bastarda elements. Ruled in red ink. Of the large miniatures, two have full floral borders and depict the Annunciation (folio 11 verso) and a cleric (probably Robert Blackadder) in prayer before the crucified Christ (folio 47 verso). The others show the Agony in the Garden (folio 31), the celebration of Mass (folio 45 verso) and the Pietà (folio 84 verso). There are numerous small miniatures and historiated initials, including Saints Ninian and Margaret of Scotland. Small gold initials and line fillers on red, blue or brown grounds throughout. Some spaces for initials have been left blank, and section (xxi) has no decoration.

There are inscriptions and prayers in several hands of the late fifteenth and early sixteenth centuries on folio 1, one of which refers to St Kentigerna as patroness of Inchcailloch in Lennox.