• null, Miscellany, including De institutione arithmetica (ff. 1v-31), Astronomica (ff. 71v-89v). Guido d’Arezzo: Micrologus (ff. 98-104), Regulae rhythmicae (ff. 104-106), Prologus in Antiphonarium (ff. 106-107), Epistola ad Michaelem (ff. 107-109v). Anonymous: ‘Mensura Fistularum’ [Inc. “Fistularum mensuram ut a quibusdam…”] (ff. 109v-110), ‘Mensura Organistri’ [Inc. “Organicam quicumque liram…”] (f. 110), Commentary (ff. 121-151).

faces, and some with a blue or green wash. Diagrams in red and black, some with a blue and green wash. Marginal images of the constellations, men, animals, and objects, in red ink with green, blue and/or pink washes (ff.

• Detail of a book plate identifying the manuscript as part of Henry Yates Thompson's collection., Bible

foliate decoration, in colours and gold. Smaller puzzle initials in red and blue with pen-flourishing in blue and red. Small initials in red with blue pen-flourishing or in blue with red pen-flourishing. Bible William Paget (b. 1609, d. 1678), 5th

• Illuminated initial 'L'(a) in a trouvère song in French, attributed in the margin to Reignaut, the Chastelain de Couci., Musical miscellany

large puzzle initials in red and blue with red and blue penwork pen-flourishing extending to form a partial border (ff. 119, 122). Small initials in red with blue pen-flourishing. Small initials in red or blue. Musical miscellany 15th-century music on

• Puzzle initial 'P'(helomena) with penwork decoration., Musical miscellany

large puzzle initials in red and blue with red and blue penwork pen-flourishing extending to form a partial border (ff. 119, 122). Small initials in red with blue pen-flourishing. Small initials in red or blue. Musical miscellany 15th-century music on

• Miniature of the earth in a circle, with personifications of the four cardinal points., Tractatus de sphaera (index De sphera); Hippocras, De Contemptu Mundi; Astronomical treatises, etc.

cardinal points. Crossed tironian ets. Large initials in red with blue pen-flourishing, or in blue with red pen-flourishing. Small initials in red, green, or blue. Paraphs in green, red, or blue. Highlighting of letters in red. Large astronomical diagrams in

• Diagram of the earth, sun, and moon., Tractatus de sphaera (index De sphera); Hippocras, De Contemptu Mundi; Astronomical treatises, etc.

and moon. Crossed tironian ets. Large initials in red with blue pen-flourishing, or in blue with red pen-flourishing. Small initials in red, green, or blue. Paraphs in green, red, or blue. Highlighting of letters in red. Large astronomical diagrams in

• Historiated initial 'Q'(uoniam) with a crowned woman holding a flowering sceptre probably representing the concept of 'Nature', and in the margin, a naked boy playing a harp, at the beginning of the third book of Physics., Libri Naturales, with extensive glosses

and blue. Running headers in blue, and red and sometimes gold, with penwork decoration, some in the form of heads. Paraphs in blue. Rubrics in while, red, or blue. Marginal diagrams in red, brown, and blue, with green and blue,

• Historiated initial 'S' with a man reading a book and pointing to the heavens, and in the margin, a man pushing a naked man in a cart, with a bird, a man with an ax, and a dragon and human head in the letter form, at the beginning of book four., Libri Naturales, with extensive glosses

and blue. Running headers in blue, and red and sometimes gold, with penwork decoration, some in the form of heads. Paraphs in blue. Rubrics in while, red, or blue. Marginal diagrams in red, brown, and blue, with green and blue,

• Historiated initial 'S'(umma) with Christ holding the world, and an monkey and a hybrid grotesque in the upper margin., Libri Naturales, with extensive glosses

and blue. Running headers in blue, and red and sometimes gold, with penwork decoration, some in the form of heads. Paraphs in blue. Rubrics in while, red, or blue. Marginal diagrams in red, brown, and blue, with green and blue,

• Historiated initial 'G'(eneratione) with a couple in bed, and a nursemaid with an infant in a cot below, at the beginning of the third book 'On Coming Into Being and Passing Away' ('De Generatione et Corruptione') concerning chemical transformations and conditions of existence., Libri Naturales, with extensive glosses

and blue. Running headers in blue, and red and sometimes gold, with penwork decoration, some in the form of heads. Paraphs in blue. Rubrics in while, red, or blue. Marginal diagrams in red, brown, and blue, with green and blue,

• Historiated initial 'P' with a man pointing to the heavens, and in the margins, a armed man shooting an arrow at another, at the beginning of the treatise on weather ('Meteorologica')., Libri Naturales, with extensive glosses

and blue. Running headers in blue, and red and sometimes gold, with penwork decoration, some in the form of heads. Paraphs in blue. Rubrics in while, red, or blue. Marginal diagrams in red, brown, and blue, with green and blue,

• Historiated initial 'Q' of a king and a crowd, including a Franciscan friar, looking on while a boy throws books down onto a fire and small miniature of a man in bed, at the beginning of the first section of the 'Natural Philosophy' textbook, 'Physics' ('Physicorum'), and marginal scenes of a naked boy with a sword and shield fighting a lion, animals and lions, and two men fighting holding swords and shields., Libri Naturales, with extensive glosses

and blue. Running headers in blue, and red and sometimes gold, with penwork decoration, some in the form of heads. Paraphs in blue. Rubrics in while, red, or blue. Marginal diagrams in red, brown, and blue, with green and blue,

• Historiated initial 'U'(ltrum) with God holding the world, and in the margin, a naked woman holding a sword and shield and a hybrid creature, at the beginning of book eight, in which Aristotle states that motion is eternal and continuous and that an unmoving and unmovable 'first mover' existed on the edge of the universe., Libri Naturales, with extensive glosses

and blue. Running headers in blue, and red and sometimes gold, with penwork decoration, some in the form of heads. Paraphs in blue. Rubrics in while, red, or blue. Marginal diagrams in red, brown, and blue, with green and blue,

• Historiated initial with a post-windmill, and a man beside the windmill guides its tailpole, with a bird in the lower margin, at the beginning of section 4 of Aristotle's treatise on weather ('Meteorologica')., Libri Naturales, with extensive glosses

and blue. Running headers in blue, and red and sometimes gold, with penwork decoration, some in the form of heads. Paraphs in blue. Rubrics in while, red, or blue. Marginal diagrams in red, brown, and blue, with green and blue,

• Historiated initial with a shrouded corpse and two monks, at the beginning of Aristotle's letter 'On Death and Life' ('De Morte et Vita'), with a sketch for the illuminator in the lower margin., Libri Naturales, with extensive glosses

and blue. Running headers in blue, and red and sometimes gold, with penwork decoration, some in the form of heads. Paraphs in blue. Rubrics in while, red, or blue. Marginal diagrams in red, brown, and blue, with green and blue,

• Historiated initial 'D(e) with a woman awake in bed with a small boy standing next to it, and below, seven sleeping men, at the beginning of 'On Sleep and Wakefulness'., Libri Naturales, with extensive glosses

and blue. Running headers in blue, and red and sometimes gold, with penwork decoration, some in the form of heads. Paraphs in blue. Rubrics in while, red, or blue. Marginal diagrams in red, brown, and blue, with green and blue,

• Historiated initial 'B'(orum) with an angel holding a scale being pulled by a devil, and a dying man surrounded by mourners in the lower register., Libri Naturales, with extensive glosses

and blue. Running headers in blue, and red and sometimes gold, with penwork decoration, some in the form of heads. Paraphs in blue. Rubrics in while, red, or blue. Marginal diagrams in red, brown, and blue, with green and blue,

• Historiated initial 'D'(ec) with souls looking upwards while angels blow trumpets, and a bird in the lower margin., Libri Naturales, with extensive glosses

and blue. Running headers in blue, and red and sometimes gold, with penwork decoration, some in the form of heads. Paraphs in blue. Rubrics in while, red, or blue. Marginal diagrams in red, brown, and blue, with green and blue,

• Historiated initial 'Q'(uoniam) with a soul being raised by angels and Christ blessing above., Libri Naturales, with extensive glosses

and blue. Running headers in blue, and red and sometimes gold, with penwork decoration, some in the form of heads. Paraphs in blue. Rubrics in while, red, or blue. Marginal diagrams in red, brown, and blue, with green and blue,

• Historiated initial 'R' with a seated man, and an ape in the lower margin, with a sketch for the illuminator., Libri Naturales, with extensive glosses

and blue. Running headers in blue, and red and sometimes gold, with penwork decoration, some in the form of heads. Paraphs in blue. Rubrics in while, red, or blue. Marginal diagrams in red, brown, and blue, with green and blue,