'My Lord, I have undertaken this long journey purposely to see your person, and to know by what engine of wit or ingenuity you came first to think of this most excellent help unto astronomy, viz. the Logarithms; but, my Lord, being by you found out, I wonder no body else found it out before, when, now known, it is so easy.' He was nobly entertained by the Lord Napier, and every summer after that, during the Lord's being alive, this venerable man, Mr. Briggs, went purposely into Scotland to visit him; _Tempora nunc mutantur_. These two persons were worthy men in their time; and yet the one, viz. Lord Marchiston, was a great lover of astrology, but Briggs the most satirical man against it that hath been known: but the reason hereof I conceive was, that Briggs was a severe Presbyterian, and wholly conversant with persons of that judgment; whereas the Lord Marchiston was a general scholar, and deeply read in all divine and human histories: it is the same Marchiston who made that most serious and learned exposition upon the _Revelation of St. John_; which is the best that ever yet appeared in the world. * * * * * Thus far proceeded Mr. William Lilly in setting down the account of his life, with some other things of note. Now shall be added something more which afterwards happened during his retirement at his house at Hersham, until his death. He left London in the year 1665, (as he hath before noted) and betook himself to the study of physick; in which, having arrived at a competent degree of knowledge, assisted by diligent observation and practice, he desired his old friend, Mr. Ashmole, to obtain of his Grace Dr. Sheldon, then Lord Archbishop of Canterbury, a license for the practice of physick; which upon application to his Grace, and producing a testimonial (October 8, 1670,) under the hands of two physicians of the college in London, on Mr. Lilly's behalf, he most readily granted, in the manner following, viz.