unius regni precium they say, more than a king's ransom; how many crowns per annum, to perfect arts, the one about his History of Creatures, the other on his Almagest? How much time did Thebet Benchorat employ, to find out the motion of the eighth sphere?

"Tetrabiblos, or Quadripartite; being Four Books, of the Influence of the Stars, newly translated from the Greek Paraphrase of Proclus; with a Preface, explanatory Notes, and an Appendix containing Extracts from the Almagest of Ptolemy, and the whole of his Colloquy, &c. by J.M. Ashmand."

Various dissertations on minor pieces exist: but there is no English translation of the Almagest, &c., though it exists in French (see Smith's Biograph.