1r

Al padre al figlio allo spirito santo
perongni secol sia gloria et honore
ebenedetto sia suo nome quando
tutte lecriature anno vighore
lauldato eringraziato inongni chanto
chonpuramente eccondivoto chuore
econfessata sia lasua bontade
pura miserichordia echaritade

Dolcie singnore apri lelabbra mie
Inlumina ilmio chor collatua lucie
ellamia boccha anuzi letue vie
piena dilode esieno senpre mie ducie
allo aiutorio mio intendi esie
colla tua grazia chelmondo chonducie
elmio dirsia chonsolazione efrutto
ditutti que chentendon tal chostrutto

Adongni cor gentile e mentte pure
chedisidera intendere laragione
collaquale sighoverna la natura
daunprincipio che / e / prima chagione
eonde ellessere ongni criatura
eddiloro qualita echondizione
diccho cheleghano yversi seghuenti
chiamando iddio ecchoglianimi atenti

[Image: Five-line historiated initial A with author portrait depicting a tonsured Dominican friar (black cloak over white habit) against a cloud-streaked sky; he is holding and pointing to a book bound in red and showing cosmological diagrams. Given the Dominican identification, the author intended is Leonardo Dati, Master General of the Dominican Order 1414–25 and brother of alternative authorial candidate Gregorio Dati. The initial A is surrounded by multicolored sprays of foliates filled with gold leaf and a winged putto crouches on top.]

[Image: Full-page illuminated frontispiece with full borders, gold bezants, and penwork decoration. In the left margin, a gold armillary sphere with astrological signs of the zodiac on a blue band of the ecliptic, mounted on a pole held by a winged putto, with two wrestling putti below. In the right margin, a roundel with a friar (Dati?) sitting before a window at a desk with a book and sphere. Below in the right margin, winged putti and two harpies wearing orange collars or kerchiefs. In the lower margin, a full-width bar border, at center an unidentified coat of arms (rubbed, possibly primarily orange and gold with a single diagonal band, with an Italian shield (testa di cavallo), encircled by a gold finger ring with point-cut diamond (rubbed) supported by two winged putti, the upper edge with a peacock and waterfowl, with two supporting figures (angels?) and two strings of orange beads (perhaps rosaries) in the lower edge. Surrounding borders with rinceaux, sprays of green vines, urns, many large flowers, fruits, birds, moths, and insects.]

[Marginalia: "7612 - Vat" at bottom of page in modern hand.]