11 Sat. Very mild, some pleasant sunshine, less wind; nicest day this year. Got the groceries and then to Merton cats' meat shop. In evening flew the 34 ins. lightweight on Wimbledon Common with good results but the wartime rubber has little power in it and altitude was not very great. Met J.C. Smith & Knight up there; had not seen Smith for years. Covered 22 ins. wing with yellow tissue.