BURGERSDYK  , or BURnERSDICIUS,

FRANCIS (1S9o-1629), Dutch logician, was born at Lier, near Delft, and died at Leiden . After a brilliant career at the university of Leiden, he studied theology at Saumur, where while still very young he became professor of philosophy . After five years he returned to Leiden, where he accepted the chair of logic and moral philosophy, and afterwards that of natural philosophy . His Logic was at one time widely used, and is still valuable . He wrote also Idea Philosophiae Moralis (1644) .