Titelaufnahme

• Titel
  The variation of the compass : containing 1719 observations to, in, and from the East Indies, Guinea, West Indies, and Mediterranean, with the latitudes and longitudes at the time of observations ; the longitude for the most part reckoned from the Meridian of London, if otherwise, it is taken notice of in the margin / by Robert Douglass
• Verfasser
  Douglass, Robert
• Enthalten in
  Philosophical transactions of the Royal Society of London : giving some accounts of the present undertakings, studies, and labours, of the ingenious, in many considerable parts of the world, Jg. 66. 1776, S. 18-72
• Erschienen
  London, 1766