In 1827 he was promoted to lieutenant in HMS Adventure, under the command of Philip Parker King surveying in South America, including the Strait of Magellan.
[4][5] Thomas Abel Brimage Spratt was serving officer on both ships and on the Beacon he was joined by Edward Forbes and William Thompson.
that we should have to speak of him as the late) eminent Professor of Natural History in the University of Edinburgh—the honorary appointment of Naturalist to his vessel, then about to proceed to the Aegean.
[8][9] Graves was also interested in ancient ruins, and some of the (more than a hundred) charts that resulted from his surveys were notable for showing illustrations of historic sites, some of which no longer exist[1]: 269 .
After some months of surveying and dredging amongst the Isles of Greece, the Beacon was ordered to the coast of Lycia for the purpose of conveying to England the carved marbles and inscriptions found in the ruins of Xanthus by Sir Charles Fellows.