A first scheme, initiated by Lesseps, was immediately drawn out by two French engineers who were in the Egyptian service, Louis Maurice Adolphe Linant de Bellefonds called "Linant Bey" and Mougel Bey. This project, differing from others that were previously presented or that were in opposition to it, provided for a direct link between the Mediterranean and the Red Sea. After being slightly modified, the plan was adopted in 1856 by the civil engineers constituting the International Commission for the piercing of the isthmus of Suez. Encouraged by the engineers' approval, Lesseps no longer allowed anything to stop him. He listened to no adverse criticism and receded before no obstacle. Neither the opposition of Lord Palmerston, who considered the projected disturbance as too radical and a danger to the commercial position of Great Britain. Lesseps was similarly not deterred by the opinions entertained, in France as well as in England, that the sea in front of Port Said was full of mud which would obstruct the entrance to the canal, and that the sands from the desert would fill the trenches.