Sultan Muhsin was succeeded by his son Ahmad, and what had formerly been required of the father was now required of the son. Ahmad came to Aden on 29 February 1848, and on 8 March concluded with Haines a treaty similar to that of 1843. The only two new articles were 7 and 8. Article 7 implemented Article 3 of the 1843 treaty. By it, the transit duty on all goods passing through Lahj was fixed at two per cent, and no duty was payable on the produce of the territory itself. Under Article 8, the Sultan promised to encourage the cultivation of European and local vegetables. Article 2 in the new treaty was a restatement of Article 4 in the former one, with the addition that British subjects could now visit Lahj for pleasure as well as for commerce.