sentences:  By 1910 about 30% of the locomotive stock was out of traffic and awaiting repair, and the number of engine failures in service increased substantially in the second half of that year, for which Marsh was held responsible by the directors of the company.Because Earle Marsh was in poor health he was given leave of absence until 30 June 1911, and Billinton was instructed to take general charge of Brighton works as Marsh's locum tenens or caretaker from 15 February 1911.Marsh resigned his post on 1 July 1911.