INTERNATIONAL CONFERENCE OPENS ON BIRTH CONTROLMESSAGE FROM G.B. SHAWSpeakers hail movement as way of curbing overpopulation and wars ---- The sixth international birth control conference opened last night at Hotel McAlpin under the auspices of the American Birth Control League. Addresses were made last night by Mrs. Margaret Sanger, President of the Organization and Dr. C.V. Drysdale of the University of London. Messages from George Bernard Shaw and Havelock Ellis, approving of the movement, were also read. "While the United States," said Mrs. Sanger, "shuts her gates to foreigners, no attempt whatever is made to discourage the rapid multiplication of...