typography, printing, book-binding, paper manufacture, scientific
apparatus, typewriters, coins and medals, and innumerable other
articles. A great space is occupied by talking machines "demonstrated"
in musical theatres, and by cameras. The American Telegraph and
Telephone Company maintains transcontinental telephone connection
between its theatre and New York, and gives daily demonstrations. The
United States Government has installed a great variety of displays. Most
striking, perhaps, is the section from the National Museum, where the
most modern methods of exhibition are exemplified in cases containing
human groups that are almost real life. The great pipe organ in Festival
Hall is classed as one of the exhibits of this palace. Germany, Japan,
China, the Netherlands, Uruguay, Cuba, and New Zealand are heavy
exhibitors here. Of special interest is the German exhibit of radium and
its allied metals.

The Palace of Education and Social Economy contains the special
educational exhibits of this Exposition, which itself, as a whole, is a
world-university. Its striking features are the great number of official
exhibits by states, cities and foreign nations, and the emphasis laid on
industrial and vocational education, public health, playgrounds, and the
training of abnormal children. An educational exhibit is one of the most
difficult to make vivid and interesting to the general public. This
palace has succeeded by avoiding duplication. To each state or city was
assigned a special problem, as far as possible the one to which it had
contributed a noteworthy solution. Thus, Massachusetts shows her
vocational methods, while Oregon specializes on rural schools as
neighborhood centers. Among the cities, St. Louis devotes most of its
space to the educational museum, while Philadelphia emphasizes central
high schools. The United States Government supplies a branch of its
Children's Bureau, with daily conferences for parents. Among the many