mile. Large crowds witnessed the passing of the cortege, and shopkeepers closed their premises and dimmed their lights. The coffin was placed in a special Midland and Glasgow and South Western Railway van. The train set off at 8.30 pm for Kilmarnock, where the van was attached to the overnight express to St Pancras railway station in London. Kelvin's funeral was to be held on 23 December 1907. The coffin was taken from St Pancras by hearse to Westminster Abbey, where it rested overnight in St Faith's Chapel. The following day the Abbey was crowded for the funeral, including representatives from the University of Glasgow and the University of Cambridge, along with representatives from France, Italy, Germany, Austria-Hungary, Russia, the United States, Canada, Australia, Japan, and Monaco. Kelvin's grave is in the nave, near the choir screen, and close to the graves of Isaac Newton, John Herschel, and Charles Darwin. The pall-bearers included Darwin's son, Sir George Darwin. Back in Scotland the University of Glasgow held a memorial service for Kelvin in the Bute Hall. Kelvin had been a member of the Scottish Episcopal Church, attached to St Columba's Episcopal Church in Largs, and when in Glasgow to St Mary's Episcopal Church (now, St Mary's Cathedral, Glasgow). At the same time as the funeral in Westminster Abbey, a service was held in St Columba's Episcopal Church, Largs, attended by a large congregation including burgh dignitaries. William Thomson is also memorialised on the Thomson family grave in Glasgow Necropolis. The family grave has a second modern memorial to William alongside, erected by the Royal Philosophical Society of Glasgow; a society of which he was president in the periods 1856–1858 and 1874–1877. Aftermath and legacy Limits of classical physics In 1884, Thomson led a master class on "Molecular Dynamics and the Wave Theory of Light" at Johns Hopkins University. Kelvin referred to the acoustic wave equation describing sound as waves of pressure in air and attempted to describe also an electromagnetic wave equation, presuming a luminiferous aether susceptible to vibration. The study group included Michelson and Morley who subsequently performed the Michelson–Morley experiment, which subsequently found no luminiferous aether. Thomson did not provide a text but A. S. Hathaway took notes and duplicated them with a Papyrograph. As the subject matter was under active development, Thomson amended that text and in 1904 it was typeset and published. Thomson's attempts to provide mechanical