1 Treffer

• 
   Das Dokument ist frei verfügbar.

  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

  Douglass, Robert

  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