Prof.
Watson gave a lecture on Ramanujan’s notebooks at the London
Mathematical Society in 1931, and published several papers between
1928-36, motivated by Ramanujan’s work. Watson’s Presidential
address to the London Mathematical Society, in 1935, was on mock
theta functions, discovered by Ramanujan during the period when
he was terminally ill (March 1919 – April 1920) after his
return to India.