Blackstone was admitted to Middle Temple, and called to the Bar there in 1746. Following a slow start to his career as a barrister, Blackstone became heavily involved in university administration, becoming accountant, treasurer and bursar on 28 November 1746 and Senior Bursar in 1750. On 3 July 1753 he formally gave up his practice as a barrister and started a series of lectures on English law, the first of their kind. The lectures on law were massively successful. They earnt him a total of £453 (£) per year, and led to the publication of "An Analysis of the Laws of England" in 1756. This repeatedly sold out and was used to preface his later works.