...tars4 Coehorn mortars5 Total armament210 The fire from this work completely covers the navy-yard, and in case the latter is held by the Federal authorities, it would not hold out long against Fort Pickens . The bar on the exterior of the Bay is three miles distant, and beyond that there are no facilities for a hostile fleet to lie in safety. All the forts in Pensacola Bay are ere this garrisoned by...