From The Illustrated London News, January 9, 1858, Volume 32, January – June 1858
THE ” LEVIATHAN ” — A renewed attempt has been made this week to launch this vessel. The machinery used and the hydraulic apparatus had been greatly increased in strength, and instead of six hydraulic machines ten have been brought into play, one being the original press used in the operations for carrying out that vast undertaking the Menai Bridge and which alone gave over 200 tons nominal pressure. A progress of several feet each day has been made, and no cessation of operations will take place until the huge ship is fairly in the water.