Stonebreakers Hut on the Verandah section of the course. For the 1935 Isle of Man TT races, two motorcycle-equipped Travelling Marshals were employed to search for missing riders, particularly in poor weather conditions on the Mountain section of the TT Course. After a fatal crash by Doug J. Pirie, in poor visibility caused by mountain mist and fog near to the 33rd TT Milestone during the 1935 Lightweight TT, races were delayed or postponed to the next day until the weather improved. The first evening practice sessions were introduced for the 1937 Isle of Man TT races which continue to this day. Further changes to the Mountain Course occurred during the winter of 1953/54 as the result of fatalities to competitors during the TT races and Manx Grand Prix from 1951 to 1953. Changes were also made to facilitate the return of Sidecar TT on the new Clypse Course. On safety grounds, 'seeding' of competitors occurred for the 1959 TT race. The Thursday afternoon practice session from 13:45–17:00 pm introduced in the late 1950s was discontinued for the Centenary 2007 Isle of Man TT races. Also during the late 1950s, Appledene Cottage was demolished on safety grounds along with Old Brew's Restaurant near Glen Helen during the early 1960s accompanied by a road widening programme at Greeba Bridge. There were six fatalities among the competitors at the 1970 Isle of Man TT, including world championship contender Santiago Herrero, making 1970 the deadliest year in the history of the event. Further road safety work during the winter of 1970/1971 road-widening occurred at the Verandah series of bends and also at the Bungalow Bridge by the Isle of Man Highway Board cutting into the hillside. Despite the safety improvements to the Verandah section, while lying in first place on the second lap during the 1972 Isle of Man TT 125 cc Ultra-Lightweight TT race held in heavy rain, Gilberto Parlotti crashed his 125 cc Morbidelli at the Verandah and later died from his injuries. From 1973, any weather conditions that would not allow a rescue helicopter to take-off or land would lead to the race start being delayed or postponed at any TT or Manx Grand Prix race. The A2 Quarterbridge Road including the road junctions at Selborne Drive and Brunswick Drive and the A2 Bray Hill were subjected to major road repairs and re-profiling during the winter of 1978/79 by the