"I shall not trouble you with any formal compliments or thanks, which would be but an ill return for the kindness you have done me in writing in my behalf, to one you are so little acquainted with as Dr. Butler; and, I am afraid, stretching the truth in favour of a friend. I have called upon the Doctor, with a design of delivering him your letter, but find he is at present in the country. I am a little anxious to have the Doctor's opinion. My own I dare not trust to; both because it concerns myself, and because it is so variable, that I know not how to fix it. Sometimes it elevates me above the clouds; at other times, it depresses me with doubts and fears; so that, whatever be my success, I cannot be entirely disappointed. Somebody has told me that you might perhaps be in London this spring. I should esteem this a very lucky event; and notwithstanding all the pleasures of the town, I would certainly engage you to pass some philosophical evenings with me, and either correct my judgment, where you differ from me, or confirm it where we agree. I believe I have some need of the one, as well as the other; and though the propensity to diffidence be an error on the better side, yet 'tis an error, and dangerous as well as disagreeable.--I am, &c. "I lodge at present in the Rainbow Coffeehouse, Lancaster Court."[65:1] The transactions between authors and booksellers are seldom accompanied by any formidable array of legal formalities; but Hume and his publishers seem to have thought it necessary to bind each other in the most stringent manner, to the performance of their respective obligations, by "articles of agreement, made, concluded, and agreed, upon the 26th day of September, in the year of our Lord one thousand seven hundred and thirty-eight, and in the twelfth year of the reign of our sovereign lord King George the Second,--between David Hume of Lancaster Court of the one part, and John Noone of Cheapside, London, bookseller, of the other part." By this very precise document, it is provided, that "the said David Hume shall and will permit and suffer the said John Noone to have, hold, and enjoy, the sole property, benefit, and advantage of printing and publishing the first edition of the said book, not exceeding one thousand copies thereof." The author, in return, receives £50, and twelve bound copies of the book.[66:1] The transaction is on the whole creditable to the discernment and liberality of Mr. Noone. It may be questioned, whether, in this age, when knowledge has spread so much wider, and money is so much less valuable, it would be easy to find a bookseller, who, on the ground of its internal merits, would give £50 for an edition of a new metaphysical work, by an unknown and young author, born and brought up in a remote part of the empire. These articles refer to the first and second of the three volumes of the "Treatise of Human Nature;" and they were accordingly published in January, 1739. They include "Book I.