The box contains seven glass instruments: a stem hydrometer; an infingardo [slow] thermometer; two fifty-degree thermometers; a seventy-degree thermometer; a thermometer with acquarzente and migliaruole [lead pellets], probably used to measure both temperature and density of liquids; and a clinical "frog" thermometer, added later. The seventy- and fifty-degree divisions are two of the many thermometric scales adopted by the Accademia del Cimento. The thermometric liquid is acquarzente.