With his fifth talk, Sir Oliver Lodge comes to Newton (1642-1727), the father of modern astronomy, of applied science, and of the mechanistic explanation of the universe. This week he will deal with the general aspect of Newton's contribution to science, and next Thursday he will conclude his series of talks with a discussion of his pioneer work in the use of instruments in astronomy.

Two books that Sir Oliver Lodge wishes to recommend to listeners to his talks, in addition to those mentioned in the booklet dealing with his series, are Professor Brodetsky's 'Sir Isaac Newton, His Life and Work,' published in connection with the bicentenary, and The Torch-bearers,' a series of poems illustrative of the difficulties and achievements of the astronomical pioneers, by Mr. Alfred Noyes.