camphor is scarce. The artificial is made in England, shipped to
Hamburg, and then re-shipped to England as the real article. Here is the
way it is made: Pass a current of dry hydrochloric acid gas through
spirits of turpentine cooled by a freezing mixture. The liquid deposits
crystals, which are dissolved in alcohol and precipitated by water. The
separated crystals are drained and dried. They are perfectly colorless,
with an odor like camphor. At the ordinary temperature, its vapor
tension is sufficient to cause it to sublime like ordinary camphor in
small brilliant crystals in the bottles in which it is preserved. It is
insoluble in water, and gyrates when on the surface of that liquid like
true camphor.