It published Broadcast English, a series of seven booklets documenting recommended proncuniations of specific words, chiefly place names, from 1928 to 1939.
In 1928, 1,946 letters surveying pronunciation were sent to educated people, such as postmasters and vicars, in villages, 94.5% of which were returned.
In 1929, Lloyd James invited readers of the Radio Times to submit their pronunciation of place names, and received at least 1,500 letters and postcards.
The lexicographical work was mostly done by a "specialist sub-committee" made up of Jones, Lloyd James, Henry Cecil Kennedy Wyld, and Harold Orton.
[1] Part of its work has been published as pronouncing dictionaries, the BBC Pronouncing Dictionary of British Names (1971, edited by Miller), revised by Graham Pointon in 1983, and the Oxford BBC Guide to Pronunciation (2006), edited by Lena Olausson and Catherine Sangster, both published by Oxford University Press (OUP).