Complex sentence: He replied that if some defects were remedied, it could be made excellent; and was commissioned to make a revision, which appeared as "Grammatica Despauteriana" in 1695, with several later editions.
Split into simpler sentences: He replied that if some defects were remedied, it could be made excellent. He was commissioned to make a revision, which appeared as "Grammatica Despauteriana" in 1695, followed by several later editions.