Each edition contains entries describing the physical appearance and sexual specialities of about 120–190 prostitutes who worked in and around Covent Garden … At a basic level, the entries in Harris’s List detail each woman’s age, her physical appearance (including the size of her breasts), her sexual specialities, and sometimes a description of her genitals. Additional information such as how long she had been active as a prostitute, or if she sang, danced or conversed well, is also included. Addresses and prices, which range from five shillings to five pounds, are provided.
A contemporary report of 1791 estimates its circulation at about 8,000 copies annually and sold for two shillings and sixpence.
(Wikipedia).
You can read it in full via a digital version on the Wellcome Library.