ABSTEMIUS, LAURENTIUS, a native of Macerata, profeſſor of belles lettres in Urbinio, and librarian of Duke Guido Ubaldo, under the pontificate of Alexander VI. He wrote, 1. Notes on moſt difficult paſſages of ancient authors. 2. Hecatomythium, i. e. A collection of an hundred fables, &c. which have been often printed with thoſe of Aſop, Phædrus, Gabrius, Avienus, &c. and a preface to the edition of Aurelius Victor published at Venice in 1505.