IN TIMES of peace, an alert army prepares for the possibilities of war. This is especially true as far as the “combatant forces” are concerned. The duties of the Medical Department are more varied and much of our time is consumed with strictly professional work. In this, our interests and activities have been similar to those of our confreres in civil practice. We have relied upon conventional methods and accepted hospital procedures, using standard items of equipment and depending upon commercial supplies and installations in much the usual manner. In these days, however, it behooves us to give serious thought to the types of medical activity required for expansion of our army to four, five, or possibly even greater multiples of its “normal” peace-time strength and then to adjust and readjust continually so as to be able to coordinate our services and activities with the rapid changes which may be expected. We must consider working conditions under heavy aerial attack as well as those produced by the rap...