A circular horizontal surface of indefinite diameter gave a drop of water weighing 2·10 grains. This is therefore the weight of the maximum drop formed on a flat surface, and it will be seen that it very nearly coincides with the weight of the drop formed upon a surface seven-tenths of an inch diameter. The drop in this case is always formed at the centre of the surface, this being the centre of the greatest molecular attraction amongst the liquid particles.
1864 March, T[homas] Tate, “XXX. On the Magnitude of a Drop of Liquid Formed under Different Circumstances.”, in David Brewster, Robert Kane, William Francis, editors, The London, Edinburgh, and Dublin Philosophical Magazine and Journal of Science, volume XXVII (4th Series), number 181, London: Taylor and Francis, […]; sold by Longman, Green, Longman, Roberts, and Green; […], pages 178–179