San Diego Prepares for Big Exposition s r h 7"n - 1 V !r j i 1 I ; . " v i X ' " i J San Diego, Calif., prepares for California Pacific International exposition. exposi-tion. With many buildings already prepared for exhibits, and other units rapidly taking form in the hands of thousands of workers, completion for Its opening on May 29 is assured. Some 29 nations from all parts of the globe will take part and the installation of big exhibits from all parts of the United States will commence shortly. Photograph shows the Avcnida de Los Palacios. Scene from the Tower of the Science of Man.