What probably is the most modern of mobile medical units in existence has been constructed according to the design of Dr. John B. West of Provident Hospital, Chicago, The “catastrophe hospital” can carry five doctors and six nurses to duty in such emergencies as bombings, fires and mass accidents. The ambulance is equipped to accommodate 100 minor cases and four major operations. In addition to hospital apparatus the vehicle carries short-wave radio, fire-fighting equipment and acetylene torches. Itis convertible into a mobile army hospital.