John Harrison did not long survive the settlement of his claims; for he died on the 24th of March, 1776, at the age of eighty-three. He was buried at the south-west corner of Hampstead parish churchyard, where a tombstone was erected to his memory, and an inscription placed upon it commemorating his services. His wife survived him only a year; she died at seventy-two, and was buried in the same tomb. His son, William Harrison, F.R.S., a deputy-lientenant of the counties of Monmouth and Middlesex, died in 1815, at the ripe age of eighty-eight, and was also interred there. The tomb having stood for more than a century, became somewhat dilapidated; when the Clock-makers' Company of the City of London took steps in 1879 to reconstruct it, and recut the inscriptions. An appropriate ceremony took place at the final uncovering of the tomb. But perhaps the most interesting works connected with John Harrison and the great labour of his life, are the wooden clock at the South Kensington Museum, and the four chronometers made by him for the Government, which are still preserved at the Royal Observatory, Greenwich. The three early ones are of great weight, and can scarcely be moved without some bodily labour. But the fourth, the marine chronometer or watch, is of small dimensions, and is easily handled. It still possesses the power of going accurately; as does "Mr. Kendal's watch," which was made exactly after it. These will always prove the best memorials of this distinguished workman. Before concluding this brief notice of the life and labours of John Harrison, it becomes me to thank most cordially Mr. Christie, Astronomer-Royal, for his kindness in exhibiting the various chronometers deposited at the Greenwich Observatory, and for his permission to inspect the minutes of the Board of Longitude, where the various interviews between the inventor and the commissioners, extending over many years, are faithfully but too procrastinatingly recorded. It may be finally said of John Harrison, that by his invention of the chronometer--the ever-sleepless and ever-trusty friend of the mariner--he conferred an incalculable benefit on science and navigation, and established his claim to be regarded as one of the greatest benefactors of mankind.