with a progressive motion impressed on them in the beginning, perfectly solv'd thir circular courses; kept the planets from falling upon one another, or dropping all together into one center. & thus he unfolded the Universe. this was the birth of those amazing discoverys, whereby he built philosophy on a solid foundation, to the astonishment of all Europe.

at another time, when I visited him, we had some discourse about the first plantation of these western parts of the world, especially our island, from Phœnicia. I had the satisfaction to find, that I had fallen into the same sentiments, with him, and indeed I cd. not but observe with surprize that he was master of every part of curious learning: & in each branch, equal to those that had studyd it alone. whence one would be apt to draw this conclusion; that a man must be well skilld in most parts of learning, who wd. excell even in one.

13 May 1726 Sr. Isaac appointed according to custom,

a Committee of the Royal Society to visit Dr. Halley, astronomer Royal, at the observatory Greenwich: Mr Martin Folkes, Dr. Brook Taylor, my self, Mr. Machen, Mr Graham. we were to examin into the astronomical instruments, for