IIEMSTERRUYS, TIBERIUS, the son of a French physician, was born at Groningen in 1635. lie entered the university of that town in his fourteenth year, and studied theology and Analogy under Braun, oriental literature under Schultens, and mathematics aud sophy under Bernouilli. Ile afterwards went to Leyden to hear the lectures of Perizouius on ancient history, where be was engaged to put in order the manuscripts belonging to the university library. In his nineteenth year he was appointed professor of mathematics and philosophy at Amsterdam, and shortly afterwards undertook to com plete an edition of Pollux which Lederlin had left unfinished. Allentley in (two letters to Hematerkiuys pointed out the faults of this edition, which so much discouraged Ilematcrhuys that he did not open a Greek book for two months afterwards. Conscious of his own deficiencies, he resolved to acquire au accurate knowledge of the Greek language, and for that purpose read through all the Greek writer, in chrono logical order. In 1720 he succeeded Lambert 13os at Frauecker as professor of Greek; and iu 1740 removed to Leyden, where he was also professor of the acme language. He died April 7th 1766.
liemsterhuys did not write much, but he was an accurate and laborious scholar ; and it was principally owing to his reputation and exertions that the study of the Greek language, which had been greatly neglected in Holland, again became general in that country. He intro
duced what has been called the analogioal system, which prevailed in the universities of Holland for along time, and which is fully developed in the writings of Lennep. Heinsterhuys was not only a good classical scholar, but he was acquainted with several of the oriental languages, and had a considerable reputation for his knowledge of mathematics and philosophy.
The principal works of Hemeterbuys are :—the latter part of the edition of ' Pollux ' by Lederlia, 1706; Luciani Colloquia et Timou,' 1703 ; Plutus' of Aristophanes, 1744; 'Latin Orations,' published by Valckenaer, 1784; Latin translation of the 'Birds' of Arietophanes, in the edition, of Kuater ; 'Notes and Emendatioue on Xenophon of Ephesus,' inserted in the third volume of thee Miscellanea Critics' of Amsterdam. He also edited the early part of the edition of Lucian, which was completed by Reitz. The life of Henisterhuye has been written by Ruhnken.