Ort : London

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  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