An arsenal is a royal or public magazine or place appointed for the making, repairing, keeping, and issuing of military stores. An arsenal of the first class traditionally included factories for guns and gun-carriages, small-arms, small-arms ammunition, harness, saddlery, tents, and powder; a laboratory and large store-houses. In arsenals of the second class workshops take the place of the factories. The Royal Arsenal, Woolwich, which manufactured warlike implements and stores for the army and navy, was formed about 1720, and comprised factories, laboratories, etc, for the manufacture and final fitting up of almost every kind of arms and ammunition. Great quantities of military and naval stores were kept at the dockyards of Chatham, Portsmouth, Plymouth, and Pembroke. Research Arsenal