One notable change introduced with the _Dreadnought_ was that she had no intermediate or secondary armament. She carried ten 12-inch guns as her main battery, and some smaller guns to repel torpedo attack, but whereas the _Lord Nelson_ had twenty-nine anti-torpedo boat guns the _Dreadnought_ had but five, depending rather upon her smaller armament of twenty-four 3-inch quick-firers (12-pounders), and in addition she had five under-water torpedo tubes. [Illustration: H.M.S. “DREADNOUGHT.” _Photograph by Stephen Cribb, Southsea._] A Parliamentary Paper issued at the time described the arrangement of her guns as follows:-- “In arranging for a uniform armament of 12-inch guns it became at once apparent that a limitation to the number of guns that could be usefully carried was imposed by considerations of the blast effect of the guns on the crews of those guns adjacent to them. It is obviously uneconomical to place the guns in such relative positions that the blast of any single gun on any permissible training should very seriously hamper the use of one or more of the remaining guns. While it is recognised that broadside fire is held to be the most important in a battleship, all-round fire is also considered of great importance, since it lies in the power of an enemy to force an opponent who is anxious to engage to fight an end-on action. In the arrangement of armament adopted six of the guns are mounted in pairs on the centre line of the ship; the remaining four guns are mounted in pairs on the broadside. These eight 12-inch guns--80 per cent. of the main armament--can be fired on either broadside, and four or possibly six 12-inch guns--or 60 per cent. of the main armament--can be fired simultaneously ahead or astern.