• Decorated initial 'A'(usculta) at the beginning of the Regula Sancti Benedicti., Martyrology

and/or green. Martyrology The Benedictine cathedral priory of Holy Trinity or Christ Church, Canterbury: the martyrology was annotated with records of names and death dates of many Christ Church monks, as well as brothers from Glastonbury, Faversham and others in

• Decorated initial 'K'(alende)., Martyrology

and/or green. Martyrology The Benedictine cathedral priory of Holy Trinity or Christ Church, Canterbury: the martyrology was annotated with records of names and death dates of many Christ Church monks, as well as brothers from Glastonbury, Faversham and others in

• Decorated initials 'R'(ome) and 'C'(ommemoratio)., Martyrology

and/or green. Martyrology The Benedictine cathedral priory of Holy Trinity or Christ Church, Canterbury: the martyrology was annotated with records of names and death dates of many Christ Church monks, as well as brothers from Glastonbury, Faversham and others in

• Text page with readings for ferials in the spring in the left column, and for a Saturday and Sunday in the octave of Easter, including a reading on Alphege, archbishop of Canterbury., Martyrology

and/or green. Martyrology The Benedictine cathedral priory of Holy Trinity or Christ Church, Canterbury: the martyrology was annotated with records of names and death dates of many Christ Church monks, as well as brothers from Glastonbury, Faversham and others in

• Decorated initial 'K'(alende)., Martyrology

and/or green. Martyrology The Benedictine cathedral priory of Holy Trinity or Christ Church, Canterbury: the martyrology was annotated with records of names and death dates of many Christ Church monks, as well as brothers from Glastonbury, Faversham and others in

• Decorated initial 'K'(alende)., Martyrology

and/or green. Martyrology The Benedictine cathedral priory of Holy Trinity or Christ Church, Canterbury: the martyrology was annotated with records of names and death dates of many Christ Church monks, as well as brothers from Glastonbury, Faversham and others in

• Decorated initial 'K'(alende)., Martyrology

and/or green. Martyrology The Benedictine cathedral priory of Holy Trinity or Christ Church, Canterbury: the martyrology was annotated with records of names and death dates of many Christ Church monks, as well as brothers from Glastonbury, Faversham and others in

• Notes on an originally blank folio, including a statement of the author and title in 13th-century script in the middle at the top ('Adthelardus de compoto'), which is recognisable as a Christ Church, Canterbury inscription. Below this is a note of a flood in Thanet and Sheppy, in 1394, confirming continued ownership in Kent in the 14th century. The astrological symbol for Jupiter in the extreme top right corner is a characteristic marking of books owned by John Dee (died 1608), a famous alchemist in the court of Elizabeth I., Mnemonic verses, notes, etc., on the compotus

Church, Canterbury: his note (f. 1v).The Benedictine abbey of Christ Church, Canterbury: formerly bound with Cotton Caligula A XV, ff. 120-153, the volume entitled 'Compotus Adelardi' in Prior Eastry's early 14th-century catalogue of books in the library of Christ

• Detail of inscription at the bottom of the folio., Epistola de vita S. Dunstani; Life of St Dunstan

Church, Canterbury (see f. 2; Gameson 1999 p. 94).Dover Priory, by 14th century: inscribed with its press mark 'D VII' and title (f. 2); included in the 1389 catalogue.John Joscelin [Joscelyn] (b. 1529, d. 1603), Old English scholar and

• Decorated headpiece and initials., Sticherarion (hymnal of the Greek Church), for Saint's days and festivals, with musical notation

99, 129v, 246v). Large initials in red with penwork decoration. Accents and rubrics in red. Sticherarion (hymnal of the Greek Church), for Saint's days and festivals, with musical notation Purchased at Sotheby's 16 February 1875 by the British Museum, using

• Inscription in English., West Saxon Gospels (the 'Wessex Gospels')

13th century (ff. 1, 2, 175).The Benedictine abbey of Christ Church, Canterbury: Christ Church pressmark 'D[istinctio] xvi Gra[dus] iiii (f. 3); listed in Henry of Eastry's catalogue of Christ Church library, of 1337-38 as 'Textus iv evangeliorum anglice' (See Ker,

• Coloured initial 'H'(er ys godspelles) in green with penwork decoration in red, with ownership inscriptions of Thomas Cranmer (Thomas Cantuarien[sis]) and John Lumley., West Saxon Gospels (the 'Wessex Gospels')

13th century (ff. 1, 2, 175).The Benedictine abbey of Christ Church, Canterbury: Christ Church pressmark 'D[istinctio] xvi Gra[dus] iiii (f. 3); listed in Henry of Eastry's catalogue of Christ Church library, of 1337-38 as 'Textus iv evangeliorum anglice' (See Ker,

• Coloured initial 'N'(u) in red with green penwork decoration., West Saxon Gospels (the 'Wessex Gospels')

13th century (ff. 1, 2, 175).The Benedictine abbey of Christ Church, Canterbury: Christ Church pressmark 'D[istinctio] xvi Gra[dus] iiii (f. 3); listed in Henry of Eastry's catalogue of Christ Church library, of 1337-38 as 'Textus iv evangeliorum anglice' (See Ker,

• Table, Mnemonic verses, notes, etc., on the compotus

Church, Canterbury: his note (f. 1v).The Benedictine abbey of Christ Church, Canterbury: formerly bound with Cotton Caligula A XV, ff. 120-153, the volume entitled 'Compotus Adelardi' in Prior Eastry's early 14th-century catalogue of books in the library of Christ

• Diagrams of hands, with signs of pricking visible, as if for pouncing. Gaps in the text, such as in the second line of text, are probably present because of the intended alternation in the colours of initials, but no green or other colour initials were executed. For example, a guide letter 'e' is visible in the margin adjacent to the final line, for which no initial was executed., 'Quomodo inueniri possint concurrentes et data cuiuslibet anni per manum'

Church, Canterbury: his note (f. 1v).The Benedictine abbey of Christ Church, Canterbury: formerly bound with Cotton Caligula A XV, ff. 120-153, the volume entitled 'Compotus Adelardi' in Prior Eastry's early 14th-century catalogue of books in the library of Christ

• Drawing of hands. The rubric on this page states that the fingers of the hand, illustrated in the lower diagram, can be used for finding the date of Easter. Each joint or tip, from the base of the second finger to the top of the thumb, working down the fingers and up the thumb, is marked with numbers and letters. Those from the middle finger to the thumb represent all the possible dates of Easter that fall within March., 'Quomodo inueniri possint concurrentes et data cuiuslibet anni per manum'

Church, Canterbury: his note (f. 1v).The Benedictine abbey of Christ Church, Canterbury: formerly bound with Cotton Caligula A XV, ff. 120-153, the volume entitled 'Compotus Adelardi' in Prior Eastry's early 14th-century catalogue of books in the library of Christ

• Red initial 'S'(cribo), and a drawing of hands, in a treatise concerning calendrical computations using the joints and tips of the fingers of hands: it is illustrated with drawings of the hands, marked with numbers from 1 to 7 (i to vii) and letters from A to G, at these points., 'Quomodo inueniri possint concurrentes et data cuiuslibet anni per manum'

Church, Canterbury: his note (f. 1v).The Benedictine abbey of Christ Church, Canterbury: formerly bound with Cotton Caligula A XV, ff. 120-153, the volume entitled 'Compotus Adelardi' in Prior Eastry's early 14th-century catalogue of books in the library of Christ

• Drawing of hands. The hands here are marked with all the possible dates of Easter when it falls in April, working down the left-hand thumb, and then up the left-hand fingers, and up the first two fingers of the right hand., 'Quomodo inueniri possint concurrentes et data cuiuslibet anni per manum'

Church, Canterbury: his note (f. 1v).The Benedictine abbey of Christ Church, Canterbury: formerly bound with Cotton Caligula A XV, ff. 120-153, the volume entitled 'Compotus Adelardi' in Prior Eastry's early 14th-century catalogue of books in the library of Christ

• Diagram of a hand, as a mnemonic devise for the compotus., Mnemonic verses, notes, etc., on the compotus

Church, Canterbury: his note (f. 1v).The Benedictine abbey of Christ Church, Canterbury: formerly bound with Cotton Caligula A XV, ff. 120-153, the volume entitled 'Compotus Adelardi' in Prior Eastry's early 14th-century catalogue of books in the library of Christ

• Donor inscriptions and pressmark., Sermons (f. 2); Statutes of the Church of Hereford (f. 258v)

Church of Hereford has been added at the end (ff. 258v-262): it is therefore possible that Thomas Trilleck was related to John de Trilleck, bishop of Hereford (1344-1360).William Reed, bishop of Chichester (1369-1385), given by him to the Collegiate