McClellan, Edwin Lemare, and Camille Saint-Saens. What a chapter would be set aside for the record of Exposition choral music! Already there has gone abroad from the Festival Hall an impetus towards better chorus music that will, I feel sure, firmly establish this somewhat neglected department of musical art in the far West. XV. Inside the Exhibit Palaces All competitive exhibits strictly contemporaneous, showing the arts of to-day--Revolution worked by the motion-picture theater in exhibition methods--The lessons of Machinery Palace--Coal and steam fast yielding to liquid fuels and waterpower and electricity--Life-saving devices, accident prevention and employees' welfare made prominent in Palaces of Machinery and Mines--A contrast in locomotives--Building a motor car every ten minutes--Co-operative exhibits in Food-Products Palace--Many great displays by the United States Government--Educational exhibits not duplicated, each state or city showing its specialty. In its industrial displays, as well as its art, the Exposition keeps steadily in view the fact that it commemorates a contemporary event; it is contemporaneous, not historical. Hence it was decreed from the first that the exhibits must be the products of the last decade, a rule strictly observed save in rare cases where older forms have been admitted for comparison. The result is two-fold. The exhibits are condensed to the essential, giving room for a greater number of exhibitors; and the progress of the world is shown as of today. Eleven palaces house the exhibits, exclusive of live stock. Officially, the things shown in the state and foreign buildings are not "exhibits," but "displays," and are not eligible for award. In general, the names of the palaces indicate the classes of exhibits to be found in them. No sharp line, however, can be drawn between the Palaces of Manufactures and Varied Industries, or between Agriculture and Food Products. In other cases there is some overlapping of classes. One section of the Liberal Arts exhibit is in the Palace of Machinery.