Explanatory notes
… with mercury or fine lead shot. These weights are generally fixed, but instruments for ascertaining the density of … etc. Others are named after the inventor (e.g., Baumé, Brix, Balling, Bates, Gay‑Lussac, Richter, Tralle, Sikes, … metallic strips. This movement is transmitted to an axle fixed to the end of the metallic strips and fitted with a …