19th century

De accentibus ac diphthongis et formatione praeteritorum graecorum.

Saxolus Pratensis.
[Milan : Bonus Accursius, about 1480]
PML 59898
Department: 

De articulis fidei et ecclesiae sacramentis.

Thomas, Aquinas, Saint, 1225?-1274.
[Paris : Simon Doliatoris, about 1485]
PML 491
Department: 

De componendis versibus hexametro et pentametro. Add: Perottus: De generibus metrorum; De Horatii ac Boethii Severini metris. Omnibonus Leonicenus: De arte metrica. Honoratus Servius Maurus: Centimetrum.

Maturanzio, Francesco, -1518.
Venice : Maximus de Butricis, 19 Aug. 1491.
PML 20715
Department: 

De consuetudinibus et conditionibus orientalium regionum.

Polo, Marco, 1254-1323?
[Gouda : Gerard Leeu, between 1483 and 11 June 1484]; [1483-85]
PML 649
Department: 

De duobus amantibus Euryalo et Lucretia.

Pius II, Pope, 1405-1464.
[Rome : Johannes Bulle, about 1480]
PML 45609
Department: 

De efficacia aquae benedictae.

Torquemada, Juan de, 1388-1468.
[Rome] : Bartholomaeus Guldinbeck, 30 Aug. 1475.
PML 25144
Department: 

De eius visione, sive De raptu animae.

[Speyer : Johann and Conrad Hist, 1483]
PML 189
Department: 

De elegantia linguae latinae.

Ferettus, Nicolaus.
Forlı̀ : Hieronymus Medesanus, 25 May 1495.
PML 22113
Department: 

De epidemia et peste. [Low German:] Eyn ghud bewert regimente van den pestilencien.

Valesco, de Tarenta, active 1382-1418.
Lübeck : Bartholomaeus Ghotan, [1484]
PML 22103
Department: 

De epistolari dicendi genere.

Sekoundinos, Nikolaos, 1402-1464?
[Naples : Arnaldus de Bruxella, about 1472]
PML 20551
Department: