Narrative of an expedition to the source of the st. peter`s river, lake winnepeek, lake of the woods, etc. performed in the year 1823, by order of the hon. j. c. calhoun, secretary of war, under the command of stephen h. long, u.s.t.e., Matthews, David (professor Of Diabetic Medicine, Nuffield Department Of Clinical Medicine, University Of Oxford And Consultant Physician, Oxford Radcl