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DOCKS. Artificial basons with locks, enabling ships tolie afloat while loading or unloading, were first constructed inthis country at Liverpool, in the commencement of theeighteenth century.

DOGS. Pennant observes, that the little Maltese dogs,called shocks, were as much esteemed as lap-dogs by theGreek and Roman ladies, as those of Bologna, which wereso much in request in the time of Elizabeth, are among themoderns. The great household dog, the greyhound, socalled from pursuing greys or badgers, the bull-dog, the ter-rier, and the large slow hound, are thought to be natives ofBritain . Spaniels appear on the sepulchral monuments ofladies in the middle ages ; the celebrated Robert Dudley ,Earl of Leicester, was the first who taught a dog to lie downwhen within the scent of game.

DOME. Although the construction of arches seems tohave been known to both the Greeks and Romans, at leastfour hundred years before the Christian sera; yet that speciesof it called the dome cannot'be traced to an earlier period thanthe building of the Pantheon, in the time of Augustus j soonafter which domes were common in the public buildings, andespecially in the Eastern part of the Empire. It is not in-deed improbable that the Romans introduced this style ofarchitecture from the East, as it is of considerable antiquityboth in China and Persia . The dome of the Santa Sophiaat Constantinople , was constructed in the reign of Justinian ,that of St. Peters in Rome , in 1513, and St. Paul’s in Lon­ don in 1710.

DOMESDAY-BOOK . The first general survey of theland and property of England, was undertaken by order ofAlfred in the commencement of the tenth century, and wasdeposited in the Cathedral of Winchester, and in existence in