SEVERAL very interesting people—writers, artists, sportsmen, and so on-have given reminiscences in this series of talks, but none had more experience than Sir Landon Ronald , who is well known, both as a conductor and as a speaker, to the audience of the air. Since he began his musical career at Covent Garden, in 189 he has met everybody worth meeting in the musical world, and out of a well-stocked gallery of celebrities he has chosen for his talk tonight three of the most remarkable—Beerbohm Tree, Santley, and Caruso.