Explanatory notes
… may be of metal, e.g., nickel‑silver, silver, etc.), and weighted at one end with mercury or fine lead shot. These weights are generally fixed, but instruments for … inventor (e.g., Baumé, Brix, Balling, Bates, Gay‑Lussac, Richter, Tralle, Sikes, Stoppani, etc.). Nicholson’s …