The first part of the biography provides a detailed and scholarly introduction to the professional education, training, and work of the naval surgeon. But after 1805 Beatty became a member of the service elite, and his career becomes interesting for other reasons. In the final decades of his life, Beatty was far more than a senior naval physician. As a Fellow of the Royal Society, director of the Clerical and Medical Insurance Company, and director of the London to Greenwich Railway, he was a prominent figure in London's business and scientific community, who used his growing wealth to build a large collection of books and manuscripts. His later life is testimony to the much wider contribution that some naval and army medical officers made to the development of the new Britain of the nineteenth century. In Beatty's case, too, the contribution was original. By publishing in 1807 his carefully crafted Authentic Narrative of the Death of Lord Nelson, he was instrumental in forging the myth of the hero's last hours, which has become a part of the national consciousness and has helped to define for generations the concept of Britishness.