Minutes of a meeting of the Council of the Royal Society to read the Report of the Meteorological Instruments Committee Report of the Meteorological Instruments Committee by B Bevan read to Council and ordered to be entered into the Committee Minute Book Has selected a permanent point of reference or bench mark for height at Waterloo Bridge, and has determined the difference of level between this point and the floor of the Council Room in the Apartments of the Society at Somerset House. Gives detailed description. 7 December 1826