PROFESSOR SHAPLEY TO GIVE FIRST OF SERIES OF LECTURES

Professor Harlow Shapley of the department of Astronomy will give the first of his series of eight lectures on modern astronomy this evening at 8 o'clock, at Huntington Hall, 491 Boylston street, Boston. The subject of this first lecture will be "The Problems of Modern Astronomy." The lectures, to be given Tuesday and Friday evenings in the Lowell Institute, are free and are open to the public, but by ticket only. Those who have not already applied for tickets may obtain them at the Hall immediately before the lecture this evening.

Professor Shapley is to a great extent responsible for the modern conception of the size of the galactic system which he has estimated to have a diameter of 250.000 light years.