Warehouses should be located on railroad spurs so that supplies may be delivered directly from cars into the warehouse and from the warehouse directly into the cars. Concentration of storage space is desirable on account of the shorter distance to move supplies when unloading and loading. To this end a depot consisting of several stories, one above another, affords the minimum trackage necessary in handling supplies and it is desirable that such a building be selected when practicable. The decision in the early part of the year 1917 to restrict the number of articles, particularly surgical instruments, which would be manufactured for the use of the hospital services of the Government and for civilian use made it possible to provide the essentials for hospital services with the limited manufacturing facilities which were then available. Such a list had been in use in the Medical Department of the Army for many years and doubtless similar lists obtained in the hospital services of other departments of the Government. This standard list presupposes specifications for the articles enumerated therein; specifications again presuppose personnel qualified to determine what those specifications should be. To write concise and adequate specifications requires familiarity on the part of the personnel writing them with the articles described therein and not only with the articles themselves, but with the process of their manufacture. The prime essential of the efficient supply service therefore is not limited to the funds provided by Congress but embraces as of equal importance a personnel trained in the actual purchase, inspection, storage and issue of the supplies, secured at the cost of the appropriations which have generally been so liberally made by Congress. The actual buying of an article and the placing of the contract therefore, is a comparatively simple matter, but the question of determining whether the articles purchased will satisfactorily accomplish the object for which they were procured is an acquirement which comes only with years of observation and experience, and then in those persons whose inclinations the more readily adapt them to the routine necessary to acquire this experience. Whatever may be the standard of any article which may be selected, the assurance that the article delivered conforms to the article specified rests solely upon the qualifications of the person designated to inspect and accept it.