I have described above the process of the execution of the selective service law. The preparation of places for the training of the recruits thus brought into the service was a task of unparalleled magnitude. On the 7th of May, 1917, the commanding generals of the several departments were directed to select sites for the construction of cantonments for the training of the mobilized National Guard and the National Army. The original intention was the construction of 32 cantonments. The appropriations made by Congress for this purpose were soon seen to be insufficient, and further study of the problem seemed to show that it would be unwise so seriously to engage the resources of the country, particularly in view of the fact that the National Guard was ready to be mobilized, that its training by reason of service on the Mexican border was substantial, and that its early use abroad in conjunction with the Regular Army would render permanent camps less important. The number was, therefore, cut to 16 divisional cantonments, and the National Guard was mobilized in camps for the most part under canvas, with only certain divisional storehouses and quarters for special uses constructed of wood. Because of the open weather during the winter months, the National Guard camps were located in the southern States. The National Army cantonments were located within the lines of the military division. A special division of the Quartermaster General's Department was established, known as the emergency construction division, and to it was given the task of erecting the cantonment buildings and such buildings as should be necessary for the National Guard. On May 17, 1917, Col. I. W. Littell, of the Regular Army, was detailed to assemble and direct an organization to be known as the cantonment division of the Quartermaster Corps, whose duties were to consist of providing quarters and camps for the training and housing of the New National Army, which was to be selected by conscription as provided in the act of Congress dated May 18, 1917. Able assistance was rendered by the following members of the committee on emergency construction and contracts, a subcommittee of the Munitions Board of the Council of National Defense: Major W. A. Starrett, chairman; Major William Kelly; C. M. Lundoff; M. C. Tuttle; F. L. Olmsted; J. B. Talmadge, secretary. [Sidenote: Specialists in purchasing and constructing secured.] Inquiries were immediately made and all available means used by telegraph, correspondence, and consultation to get in touch with the ablest constructors, engineers, draftsmen, purchasing agents, and other specialists of broad experience in their respective vocations from which an efficient and experienced organization could be selected.