Minutes of a Committee for the Improvement of Glass for Optical purposes Meeting held at the FalconGlass House Present at the meeting: Sir Humphry Davy Bart. President in the chair; Mr Brande; Mr Dollond; Mr Faraday; Mr Herschel The first experiment began by intorducing three different mixtures recommended by the Sub-Committee into three heated pots. ' Directions were given for taking out Optical and Chemical Specimens at proper times appointed. The further conduct of the Experiment was left to the superintendence of the Sub-Committee. ' 31 May 1825