This image is from the unique copy of Barrow's history of Arctic exploration presented to the British Museum Library on the death of his son John. His father's book was published in the year that, as Second Secretary for the Admiralty, he began sending ships to the Arctic to search for the Northwest Passage.
The signatures were collected by John Barrow, Jr., and among the autographs are those of McClintock, Franklin, Parry, Back, Penny, Ross, McClure, Rae, and Young. Fitzjames is Commander James Fitzjames of the Erebus, who disappeared with Franklin on the ill-fated 1845 expedition. John Barrow Jr., was an important promoter in the search for Franklin. He died in 1898.