Publisher. Canadian Pacific Cruise Series. P 298
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PLUMBAGO or Graphite Preparation in Ceylon
PLUMBAGO or Graphite Preparation PLUMBAGO (from Lat. plumbum, lead), a name frequently applied to graphite, “Miniran” in sinhala Languge. When Chemistry was in its early days and the graphite was thought to be a form of lead. Because of this, it was called “plumbago” (Latin for “acts like lead”). The black core of pencils is […]