RT Journal T1 THe medical manual of the air service JF Journal of the American Medical Association JO Journal of the American Medical Association YR 1919 FD May 10 VO 72 IS 19 SP 1368 OP 1369 DO 10.1001/jama.1919.02610190030011 UL http://dx.doi.org/10.1001/jama.1919.02610190030011 AB When the history of the great war through which the United States has just passed is fully recorded, the influence of the unusual problems, suddenly created by the requirements of the fighting forces, on the progress of scientific study will become conspicuous. One need not go beyond the medical and closely related sciences to realize the significance of this statement. Feeding an army of millions instead of thousands of persons raised anew many questions of food and nutrition which had either been overlooked or complacently disregarded under the ancient regimen. The importance of avoiding waste loomed larger than ever before at a time when we were being exhorted to conserve food to the utmost and to use substitutes so that those Jess able to do without certain food products might share our surplus in larger measure. Sanitary science and practical hygiene were confronted with new difficulties in the creation of