Our acquisitions list for March has an interesting and varied selection of items, including: the very rare printed letters sent to sea captains in 1800 by the founders of the Admiralty Chart, asking for all new information to be forwarded and promising that contributors will have their names published; an eighteenth-century astronomical work from the library of great marine watchmaker John Harrison, inventor of the marine chronometer, with his signature and bookplate; a fine watercolour of ships among icebergs firmly attributed to George Tobin; four of the fundamental parliamentary acts relating to the establishment of New South Wales, 1784-1787, from the library of Bernard Gore Brett; an early letter by George Fitzroy about the AJC at Homebush; a racy letter from a young naval officer written after his day at the inaugural Perth Cup; an exceedingly rare Italian history of performances at La Scala in Milan, with notice of a ballet based on the death of Captain Cook; and a candid photograph of the crew of HMS Penguin, taken shortly after the vessel completed its survey of the Great Barrier Reef.