Frederick Leslie Robertson, The Evolution of Naval Armament
“ The evolution of the shell gun was at this partial stage when the Crimean War broke out. In 1854 both types of projectiles were still struggling for ascendancy, though large shell guns were by this time acknowledged as the superior armament for steam vessels. Both friend and foe were now literally “stormed at by shot and shell”—of which the shell proved on the whole the more effective missile. No decisive superiority could be claimed, however, by one type over the other ”
