In the defensive warfare with epidemic diseases the Canadian Medical Corps attained a degree of efficiency that contrasted well with the medical corps of any of the Allied armies. The results in regard to enteric were perhaps the most remarkable of all. Of 100,000 Canadian patients only one man was found to have typhoid, and he, for some reason or other, had not been inoculated. The military organization of the corps was in all respect equal to the professional qualities of its members. In one division there were about twenty regimental medical officers and three field ambulances, with nine medical officers each--about 750 men to the three ambulances. For transport each ambulance had fifty horses, and seven motor and three horse ambulances, with general service wagons and carts in addition. The following represented a few of the specific achievements of the corps: A school of massage and Swedish remedial drill was organized for training nurse sisters and soldiers for this service in hospitals. A laboratory service was organized on an economical and efficient basis. Four grades of laboratories were adopted, with standard equipment and an established personnel for each; and each of the two laboratory units and twenty-two hospital laboratories were organized. The X-Ray laboratory service was similarly organized and systematized. A central medical stores was established, through which all medical supplies and technical equipment were received and distributed. The sanitary service was also completely reorganized and measures for the prevention and control of infectious diseases placed on an effective basis. Among the units organized were: Ten general hospitals; 8 special hospitals; 6 convalescent hospitals; 3 ship hospitals (one of which, the _Llandovery Castle_, was sunk by a German submarine); 2 laboratory units; 4 sanitary sections; 1 medical stores; 1 regimental depot and training school; 7 administrative units for training areas. The following table, taken from the official report of the Ministry, shows the strength of the Canadian Army Medical Corps on June 1 of successive years and on November 30, 1918: June 1 June 1 June 1 June 1 Nov. 30 1915 1916 1917 1918 1918 Officers 378 817 1,319 1,386 1,451 Nursing Sisters 535 915 1,486 1,829 1,886 Other Ranks 3,620 6,913 11,327 12,304 12,243 Total Personnel 4,533 8,645 14,132 15,519 15,580 In connection with the medical service, and yet comprising a separate and certainly a new feature of military organization, was the Canadian Army Dental Corps, which was developed to extraordinary dimensions. Undoubtedly thousands of young Canadians had never had their teeth troubles properly attended to until they entered the army.