SPANDAU, a town of Prussia, in the government of Potsdam. It is a strongly fortified place, and is the chief arsenal of the kingdom. It stands on a peninsula, formed by the junction of the river Spree with the Havel. There are manufactures of all descriptions of arms, for the use of the government, and some private establishments for making silk goods, together with several breweries and distilleries. In the fortress is the state-prison; and there are institutions for the punishment of offenders, by keeping them to hard labour. The town contains 540 houses, with 6750 inhabitants. Lat. 53. 33. 7. Long. 13. 36. 40. E.