port-town of Prussia, situated on a bay of the Baltic sea, twenty miles north-east of Koningsburg: E. long. 22° 15', N. lat. 55°.

Laboratory or Elaboratory, the chemists work-house, or the place where they perform their operations; where the furnaces are built, their vessels kept, &c. and in general, the term laboratory, is applied to any place where physical experiments in pharmacy, chemistry, pyrotechny, &c. are performed. See Chemistry, p. 108, &c.