One afternoon, when I had finished my work and the others had left, I picked up the catalogue of the Dowse Library and began idly to turn over its leaves. Incidentally, that catalogue is characteristic of the older methods of the Society. As is known to the elect, no book in the Dowse Library can ever leave the room in which it now rests, and of the catalogue twenty-five copies were printed and never circulated. If the library had been left in the Dowse house in Cambridgeport, its existence and contents could not have been more successfully hidden from the world. While reading the titles in a very casual way, my eye was caught by one which gave me a start. It read: Sloetten (Cornelius van). The Isle of Pines; or a Late Discovery of a Fourth Island in Terra Australis Incognita. London, printed by G. S. for Allen Banks, 1668. With a New and Further Discovery of the Isle of Pines, 1668; and a duplicate of the Isle of Pines. 1 vol. small 4to, calf supr., gilt leaves. A most interesting, rare, and valuable work. Even against the Editor of the Society the Dowse books are kept behind lock and key, though he is not under more than ordinary suspicion. So I was obliged to wait till the next day before my curiosity could be satisfied. I then found a thin volume, less than one-third of an inch in thickness, containing two copies of this very tract which the auction expert had identified as an issue of the "Isle of Pines" by Green, and a London issue of a second part of the "Isle of Pines," with the name of Cornelius Van Sloetten, as author. For more than fifty years this little volume had reposed in this well-known yet almost forgotten [9]library, and no one had suspected or questioned the nature of its contents. For full fifty years it had been in the care and at the call of Dr. Samuel A. Green, who claimed to be an expert on New England imprints of the seventeenth century, and one of the great wishes of whose life had been to establish his descent from this very printer, Samuel Green. Two copies within the same covers, of a tract long sought and of which only a single example had come to light in two centuries and a half--was not that alone something of a bibliographical coup?