Physician for ships : containing medical advice for seamen and other persons at sea, on the treatment of diseases, and on the preservation of health in sickly climates, and also in California Parsons, Usher, 1788-1868. Medicine Naval Medicine 4th ed Boston : Printed by Damrell & Moore, 1851 Popular Works Text 216 p. nlm:nlmuid-32531140R-bk 32531140R http://resource.nlm.nih.gov/32531140R English The National Library of Medicine believes this item to be in the public domain : https://creativecommons.org/publicdomain/mark/1.0/