early 1930s, the Exhibition continued to attract its strong annual August attendance. More land was acquired, including a further excised from Bowen Park in 1932, bringing the total Exhibition Grounds to about . Improvements to the grounds at this period included more cattle stalls along O'Connell Terrace (architect Richard Gailey Jnr) and a new show pavilion for Foggitt Jones Pty Ltd (architects Addison & MacDonald) in 1932; and a new dairy produce hall (architect Richard Gailey jnr) for the RNA in 1933. As the economy recovered during the second half of the 1930s, a number of substantial improvements were made to the RNA's exhibition facilities. In 1936, Gailey called tenders for a Wool Hall, additions to the pig and horse pavilions, new Stock & Station Agents' offices and dining hall and a new yearling sale ring. New concrete roads and additional seating accommodation were provided. The old Industrial Pavilion was demolished in 1938 and its replacement, designed by Richard Gailey Jnr and covering an area of , was completed along Gregory Terrace in June 1939 at a cost of . A new electricity hall at the corner of Gregory Terrace and Costin Street was also completed for the 1939 show – reputedly the first show pavilion in Australia dedicated entirely to electricity exhibits. (The Hall of Science, as it was later known, was demolished in 1986 to make way for a new Exhibition Building). During the Second World War, the Exhibition Grounds were occupied from late 1939 to 1944 by military authorities as a venue for training, accommodation and embarkation of troops. (Showgrounds and racecourses with their ovals and existing toilet facilities were favoured places to temporarily accommodate service personnel.) Troops at the exhibition grounds slept in pig and cattle pens; the bars beneath the John MacDonald Stand became wet canteens; and troop trains departed from the railway platforms normally used by show patrons. In 1940 and again in 1941, the military vacated the grounds temporarily for the August Exhibition. Following the entry of Japan into the war in December 1941, American troops were stationed at the showgrounds and the Exhibition of 1942 was cancelled, but was renewed in a limited fashion in 1943 and 1944. Following the war, the RNA purchased a number of buildings from the military, for use on the site. The 1950s saw further improvements and works to the grounds with the construction of a Beef