• Large coloured initial and square music notations on six-line staves for the four-part rota canon (song for singing in rounds) 'Sumer is icumen in' ("Summer is 'comin' in"). Middle English text in black ink, alternative Latin text in red ink., Musical, medical and literary miscellany, 'Sumer is icumen in', Fables and Lays of Marie de France (index Fables de Marie de France, Lais) (ff. 40-67v, 118-160), poems by Walter Map (ff. 68v-74v), goliardic satires and songs (ff. 75-107), and the 'Song of Lewes' (ff. 107-114).

references to the death of some of its abbots, in particular Abbot Simon (d. 1226) on 13 Feb., and Abbot John de Fornsett (d. 1261) on 19 Jan. (ff. 15v-16): the death of the latter probably sets a 'terminus post

• Solmisation (or solfaing) table explaining the Gamut, i.e. all the recognized notes used in medieval music., Musical, medical and literary miscellany, 'Sumer is icumen in', Fables and Lays of Marie de France (index Fables de Marie de France, Lais) (ff. 40-67v, 118-160), poems by Walter Map (ff. 68v-74v), goliardic satires and songs (ff. 75-107), and the 'Song of Lewes' (ff. 107-114).

references to the death of some of its abbots, in particular Abbot Simon (d. 1226) on 13 Feb., and Abbot John de Fornsett (d. 1261) on 19 Jan. (ff. 15v-16): the death of the latter probably sets a 'terminus post

• Calendar with prognostications and references to the death of Benedictine abbots from Reading abbey., Musical, medical and literary miscellany, 'Sumer is icumen in', Fables and Lays of Marie de France (index Fables de Marie de France, Lais) (ff. 40-67v, 118-160), poems by Walter Map (ff. 68v-74v), goliardic satires and songs (ff. 75-107), and the 'Song of Lewes' (ff. 107-114).

references to the death of some of its abbots, in particular Abbot Simon (d. 1226) on 13 Feb., and Abbot John de Fornsett (d. 1261) on 19 Jan. (ff. 15v-16): the death of the latter probably sets a 'terminus post

• Beginning of a glossary of herbs in Old French, Anglo-Norman and Latin., Musical, medical and literary miscellany, 'Sumer is icumen in', Fables and Lays of Marie de France (index Fables de Marie de France, Lais) (ff. 40-67v, 118-160), poems by Walter Map (ff. 68v-74v), goliardic satires and songs (ff. 75-107), and the 'Song of Lewes' (ff. 107-114).

references to the death of some of its abbots, in particular Abbot Simon (d. 1226) on 13 Feb., and Abbot John de Fornsett (d. 1261) on 19 Jan. (ff. 15v-16): the death of the latter probably sets a 'terminus post

• Coloured initial at the beginning of Goliardic verses in Latin, Musical, medical and literary miscellany, 'Sumer is icumen in', Fables and Lays of Marie de France (index Fables de Marie de France, Lais) (ff. 40-67v, 118-160), poems by Walter Map (ff. 68v-74v), goliardic satires and songs (ff. 75-107), and the 'Song of Lewes' (ff. 107-114).

references to the death of some of its abbots, in particular Abbot Simon (d. 1226) on 13 Feb., and Abbot John de Fornsett (d. 1261) on 19 Jan. (ff. 15v-16): the death of the latter probably sets a 'terminus post

• Miniature of the Betrayal of Christ., Book of Hours (the 'Harley Hours'), Use of Sarum, ending imperfectly

Lauds (f. 30), the Coronation of the Virgin, at Prime (f. 60), the martyrdom of Laurence, at Terce (f. 77v), John the Baptist and the Agnus Dei, at None (f. 83), Pentecost, at Vespers (f. 89), Pentecost, at Compline (f.

• Decorated initial 'M'(aria) and line-filler with hybrid creatures; in the margin, a cat with a mouse., Book of Hours (the 'Harley Hours'), Use of Sarum, ending imperfectly

Lauds (f. 30), the Coronation of the Virgin, at Prime (f. 60), the martyrdom of Laurence, at Terce (f. 77v), John the Baptist and the Agnus Dei, at None (f. 83), Pentecost, at Vespers (f. 89), Pentecost, at Compline (f.

• Decorated initial 'O'( Gloriosa) and line-filler with a hybrid creature; in the margin, a monkey., Book of Hours (the 'Harley Hours'), Use of Sarum, ending imperfectly

Lauds (f. 30), the Coronation of the Virgin, at Prime (f. 60), the martyrdom of Laurence, at Terce (f. 77v), John the Baptist and the Agnus Dei, at None (f. 83), Pentecost, at Vespers (f. 89), Pentecost, at Compline (f.

• Musical notation for the Latin song 'Samson dux fortissime'., Musical, medical and literary miscellany, 'Sumer is icumen in', Fables and Lays of Marie de France (index Fables de Marie de France, Lais) (ff. 40-67v, 118-160), poems by Walter Map (ff. 68v-74v), goliardic satires and songs (ff. 75-107), and the 'Song of Lewes' (ff. 107-114).

references to the death of some of its abbots, in particular Abbot Simon (d. 1226) on 13 Feb., and Abbot John de Fornsett (d. 1261) on 19 Jan. (ff. 15v-16): the death of the latter probably sets a 'terminus post

• Musical notation., Musical, medical and literary miscellany, 'Sumer is icumen in', Fables and Lays of Marie de France (index Fables de Marie de France, Lais) (ff. 40-67v, 118-160), poems by Walter Map (ff. 68v-74v), goliardic satires and songs (ff. 75-107), and the 'Song of Lewes' (ff. 107-114).

references to the death of some of its abbots, in particular Abbot Simon (d. 1226) on 13 Feb., and Abbot John de Fornsett (d. 1261) on 19 Jan. (ff. 15v-16): the death of the latter probably sets a 'terminus post

• Calendar with prognostications and references to abbots' deaths., Musical, medical and literary miscellany, 'Sumer is icumen in', Fables and Lays of Marie de France (index Fables de Marie de France, Lais) (ff. 40-67v, 118-160), poems by Walter Map (ff. 68v-74v), goliardic satires and songs (ff. 75-107), and the 'Song of Lewes' (ff. 107-114).

references to the death of some of its abbots, in particular Abbot Simon (d. 1226) on 13 Feb., and Abbot John de Fornsett (d. 1261) on 19 Jan. (ff. 15v-16): the death of the latter probably sets a 'terminus post

• Text page., Musical, medical and literary miscellany, 'Sumer is icumen in', Fables and Lays of Marie de France (index Fables de Marie de France, Lais) (ff. 40-67v, 118-160), poems by Walter Map (ff. 68v-74v), goliardic satires and songs (ff. 75-107), and the 'Song of Lewes' (ff. 107-114).

references to the death of some of its abbots, in particular Abbot Simon (d. 1226) on 13 Feb., and Abbot John de Fornsett (d. 1261) on 19 Jan. (ff. 15v-16): the death of the latter probably sets a 'terminus post

• Miniature of the Resurrection of Christ; Christ rising from the tomb, flanked by two angels., Book of Hours (the 'Harley Hours'), Use of Sarum, ending imperfectly

Lauds (f. 30), the Coronation of the Virgin, at Prime (f. 60), the martyrdom of Laurence, at Terce (f. 77v), John the Baptist and the Agnus Dei, at None (f. 83), Pentecost, at Vespers (f. 89), Pentecost, at Compline (f.

• Musical notation on stave with stave-high coloured capitals., Musical, medical and literary miscellany, 'Sumer is icumen in', Fables and Lays of Marie de France (index Fables de Marie de France, Lais) (ff. 40-67v, 118-160), poems by Walter Map (ff. 68v-74v), goliardic satires and songs (ff. 75-107), and the 'Song of Lewes' (ff. 107-114).

references to the death of some of its abbots, in particular Abbot Simon (d. 1226) on 13 Feb., and Abbot John de Fornsett (d. 1261) on 19 Jan. (ff. 15v-16): the death of the latter probably sets a 'terminus post

• Miniature of the Nativity with, in the upper register, Christ swaddled in a manger with a cow and a donkey on either side, and in the lower register, the Virgin lying in bed with Joseph at her side., Book of Hours (the 'Harley Hours'), Use of Sarum, ending imperfectly

Lauds (f. 30), the Coronation of the Virgin, at Prime (f. 60), the martyrdom of Laurence, at Terce (f. 77v), John the Baptist and the Agnus Dei, at None (f. 83), Pentecost, at Vespers (f. 89), Pentecost, at Compline (f.

• Miniature of the Visitation., Book of Hours (the 'Harley Hours'), Use of Sarum, ending imperfectly

Lauds (f. 30), the Coronation of the Virgin, at Prime (f. 60), the martyrdom of Laurence, at Terce (f. 77v), John the Baptist and the Agnus Dei, at None (f. 83), Pentecost, at Vespers (f. 89), Pentecost, at Compline (f.

• Historiated initial 'D'(eus) with Margaret emerging from the belly of a dragon, at the beginning of Lauds of the Virgin., Book of Hours (the 'Harley Hours'), Use of Sarum, ending imperfectly

Lauds (f. 30), the Coronation of the Virgin, at Prime (f. 60), the martyrdom of Laurence, at Terce (f. 77v), John the Baptist and the Agnus Dei, at None (f. 83), Pentecost, at Vespers (f. 89), Pentecost, at Compline (f.