Beardmore was sufficiently impressed with Shackleton to offer financial support, but other donations proved hard to come by. Nevertheless, in February 1907, Shackleton presented to the Royal Geographical Society his plans for an Antarctic expedition, the details of which, under the name British Antarctic Expedition, were published in the Royal Geographical Society's newsletter, "Geographical Journal". The aim was the conquest of both the geographical South Pole and the South Magnetic Pole. Shackleton then worked hard to persuade others of his wealthy friends and acquaintances to contribute, including Sir Philip Lee Brocklehurst, who subscribed £2,000 (approximately ) to secure a place on the expedition; author Campbell Mackellar; and Guinness baron Lord Iveagh, whose contribution was secured less than two weeks before the departure of the expedition ship "Nimrod".