Proctor, Percival

The modern dictionary of arts and sciences, or, complete system of literature : in which will be introduced every modern improvement that has been made therein by the learned and ingenious of this or any other nation ... / The historical, theological, philosophical, biographical, and grammatical parts, by the Rev. Percival Proctor ... The astronomical, mechanical, and every other branch of mathematics, by William Castieau ... The other articles by gentlemen particularly conversant in the respective subjects. They have undertaken to explain.