• publisher: Govt. print. off.
  • creator: United States Hydrographic Office , George Washington Littlehales, United States, Hydrographic Office
  • contributor: Harvard University
  • mediatype: texts
  • years: 1895
  • pages: 69
  • language: English
  • notes: "In this publication, G. W. Littlehales ... has presented his discussion of part of the observations of the magnetic declination or variation of the compass ... collected by him ... during the last ten years".--Pref.
  • download: pdf file