since approximately 1920. At the university's Koonamore research facility, Yunta, he studied the capacity of the flora to naturally regenerate under stock exclosure conditions. Osborn concluded that overstocking on pastoral stations was the primary cause of the vegetation degradation, and that natural regeneration of the flora was possible. He advised pastoralists to carefully manage station stocking levels, and to preserve the indigenous vegetation. South Australian pastoralists heeded Osborn's research work and advice. From approximately 1930, pastoralists developed "'flora reserves", which were fenced areas that excluded stock and allowed natural regeneration of the indigenous flora. The largest known flora reserve was approximately four hectares (ten acres). Other pastoralists undertook furrowing projects (a form of ploughing), a practice that facilitated the natural regeneration of the flora. Many of these projects were highly successful, and degraded, wind eroded soil-drifts and scalds (areas of eroded, hardened, water impervious soil) were revegetated and stabilised. Albert Morris was certainly aware of Professor Osborn's Koonamore research work by 1928, as the research was well publicised and Morris had engaged in botanical correspondence with Osborn. Quite possibly Morris visited the Koonamore research facility, as it was located only approximately 250 kilometres from Broken Hill. The restoration work of South Australian pastoralists also received some newspaper publicity, so it is quite possible that Morris's thinking on the restoration of degraded indigenous flora was influenced by the stock exclosure and natural regeneration research and projects conducted in South Australia. Botany, conservation, restoration 1930s Morris achieved national and international recognition as an expert on arid-zone Australian flora, and corresponded with many prominent Australian botanists. He, with Margaret, made a collection of about 8000 plant specimens, the bulk of which were donated to the Waite Institute in South Australia in 1944. This collection is now predominantly held by the State Herbarium of South Australia with some specimens held by other state collections, including the Royal Botanic Garden of NSW. He and Margaret were noted for their generosity and hospitality to fellow naturalists and others working at Broken Hill. Among those they befriended was the noted botanist and author Thistle Harris, who worked in Broken Hill as a teacher c.1930. By 1936 Albert Morris had acquired considerable expertise in the distinct fields of arid-zone tree plantation establishment, and arid-zone natural regeneration. His expertise in natural regeneration was based on the field knowledge that he had acquired on Barrier Field Naturalists Club outings into