The MS. notes of his first course of lectures are now in the British Museum. They formed a part of the library of Dr. (afterwards Sir Hans) Sloane, which was acquired under the terms of his will by the nation in 1754. For a time the book was well known and extracts were made from it, then it disappeared and for many years it was mourned as irretrievably lost. But in 1876 it was found again amongst some duplicate printed books which had been set aside, and in the following year it was restored to its place in the Manuscript Department. The notes were reproduced by an autotype process, at the instigation of Sir E. H. Sieveking, and under the supervision of a Committee of the Royal College of Physicians. This facsimile reproduction was published in 1886 with a transcript by Mr. Scott, and an interesting introduction from the pen of Dr. Norman Moore. The original notes are written upon both sides of about a hundred pages of foolscap, which had been reduced to a uniform size of six inches by eight, though the creases on the paper show that they have been further folded so as to occupy a space of about eight inches by two. These leaves have been carefully bound together in leather which presents some pretensions to elegance, but it is clear that the pages were left loose for some years after they were written. There seems to be no doubt that Harvey used the volume in its present form whilst he was lecturing, for three small threads of twine have been attached by sealing wax to the inner side of the cover so that additional notes could be slipped in as they were required. It must be assumed that Harvey did this himself, for he wrote so badly and the notes are so full of abbreviations, interlineations, and alterations, as to render them useless to any one but the author.
The title-page, which is almost illegible, is written in red ink. It runs, "Stat Jove principium, Musae, Jovis omnia plena. Prelectiones Anatomiae Universalis per me Gulielmum Harveium Medicum Londinensem Anatomie et Chirurgie Professorem. Anno Domini 1616. Anno aetatis 37 prelectae Aprili 16, 17, 18. Aristoteles Historia Animalium, lib. i. cap. 16. Hominum partes interiores incertae et incognitae quam ob rem ad caeterorum Animalium partes quarum similes humanae referentes eas contemplare." The motto prefixed to the title-page that "everything is full of Jove" is an incorrect quotation from the third Eclogue of his favourite author Virgil, of whom he was so enamoured that after reading him for a time he would throw away the book with the exclamation, "He hath a devil." This particular line appears especially to have struck his fancy, for he quotes it twice in his treatise on development, and he works out the idea which it represents in his fifty-fourth essay. He there shows that he understands it to mean that the finger of God or nature, for with him they are synonymous terms, is manifest in every detail of our structure whether great or small. For he says: "And to none can these attributes be referred save to the Almighty, first cause of all things by whatever this name has been designated--the Divine Mind by Aristotle; the Soul of the Universe by Plato; the Natura Naturans by others; Saturn and Jove by the Gentiles; by ourselves, as is seemly in these days, the Creator and Father of all that is in heaven and earth, on whom all things depend for their being, and at whose will and pleasure all things are and were engendered." He thus opened his lectures in a broad spirit of religious charity quite foreign to his environment but befitting the position he has been called upon to occupy in the history of science.