3 letters and 2 telegrams from Rupa Saparamadu to Joseph Needham and 1 letter from Joseph Needham to Rupa Saparamadu (with draft telegram on the back of 27 Mar. telegram from Rupa Saparamadu). These letters invite Joseph Needham to give the Inaugural Martin Wickramasinghe lecture in Colombo on 9 Jun., provide an itinerary and state the fee to be paid for the lecture. Notes attached, including name and address of T’ang P’ei-Sung (Tang Peisong 汤佩松).