Previous research into Australian convict transportation has concluded that a significant downturn in mortality rates occurred with the appointment of naval surgeons as superintendents in 1815. Statistical analysis of convict ships sent to New South Wales between 1787 and 1849 shows a more significant downturn occurred in 1800, following the introduction of closer supervision of ships' surgeons. The contracting system established by the Navy Board in 1786 for the transportation of convicts to New South Wales could be made to work as long as government maintained an effective system of inspection and supervision.

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1787-1849 年新南威尔士州的囚犯运输：重新考虑死亡率

先前对澳大利亚囚犯运输的研究得出的结论是，随着 1815 年任命海军外科医生为负责人，死亡率显着下降。 对 1787 年至 1849 年间送往新南威尔士州的囚犯船只的统计分析表明，1800 年发生了更显着的下降，在对船舶外科医生进行更密切的监督之后。只要政府保持有效的检查和监督系统，海军委员会于 1786 年建立的将囚犯运送到新南威尔士州的合同制度就可以发挥作用。