15th century

De meditando seu meditandi artificio.

Hugh, of Saint-Victor, 1096?-1141.
Germany , after 1492.
PML 125704.2
Department: 

De natura deo[rum].

Cicero, Marcus Tullius.
[Venice] : Vindelinus de Spira, 1471.
PML 51562
Department: 

De octo partibus orationis.

Bonisoli, Ognibene, approximately 1412-1474.
[Venice] : Jacobus Rubeus, [not before Aug.] 1473.
PML 305
Department: 

De proprietate monachorum.

Trithemius, Johannes, 1462-1516.
Mainz : Peter von Friedberg, 1495.
PML 28070.4
Department: 

De regno (Tr: Franciscus de Piccolomineis).

Dio, Chrysostom.
[Venice : Christophorus Valdarfer, not after 9 Nov. 1471]
PML 19578.1
Department: 

De simonia. Add: De probatione spirituum; De eruditione confessorum; De remediis contra recidivum peccandi.

Gerson, Jean, 1363-1429.
[Cologne] : [Ulrich Zel], [about 1467-1472]
PML 19116.1
Department: 

De vanitate et miseria vitae humanae.

Trithemius, Johannes, 1462-1516.
Mainz : Peter von Friedberg, 1495.
PML 28070.5
Department: 

De viribus herbarum carmen.

Macer, Floridus.
[Geneva : Jacques Vivian, between 1513 and 1517]; [Paris : Antoine Vérard]
PML 22115
Department: 

De vita contemplativa.

Prosper, of Aquitaine, Saint, approximately 390-approximately 463.
[Speyer : Peter Drach], 1487.
PML 78363.1
Department: 

De vita et moribus philosophorum [German]. Buch von dem Leben und Sitten der heydnischen Maister.

Burlaeus, Gualterus, 1275-1345?
Augsburg : Anton Sorg, 16 Jan. or 31 Aug. 1490.
PML 37393
Department: