Professor Hind, of the British Nautical Almanac Office, recently sent an interesting letter to the London Times on the comet depicted in that famous piece of embroidery known as the Bayeux Tapestry. Probably no one of the great comets recorded in history has occasioned a more profound impression upon mankind in the superstitious ages than the celebrated body which appeared in the spring of the year 1066, and was regarded as the precursor of the invasion of England by William the Norman. As Pingre, the eminent cometographer, remarks, it forms the subject of an infinite number of relations in the European chronicles. The comet was first seen in China on April 2, 1066. It appeared in England about Easter Sunday, April 16, and disappeared about June 8. Professor Hind finds in ancient British and Chinese records abundant grounds for believing that this visitant was only an earlier appearance of Halley's great comet, and he traces back the appearances of this comet at its several perihelion passages to B.C. 12. The last appearance of Halley's comet was in 1835, and according to Pontecoulant's calculations, its next perihelion passage will take place May 24, 1910.