In the Report of the Medical Officer of the Local Government Board for 1884, it is alleged that when an adult is revaccinated “he will receive the full measure of protection that vaccination is capable of giving him.” In the same year the Medical Officer of the General Post Office stated in a circular, “It is desirable, in order to obtain full security, that the operation (vaccination) should be repeated at a later period of life”; and the circular of the National Health Society already referred to states that “soldiers who have been revaccinated can live in cities intensely affected by small-pox without themselves suffering to any appreciable degree from the disease.” Let us then see how far these official statements are true or false. In their _Final Report_ the Commissioners give the statistics of small-pox mortality in the Army and Navy from 1860 to 1894, and, although the latest order for the vaccination of the whole force in the Navy was only made in 1871, there can be no doubt that, practically, the whole of the men had been revaccinated long before that period;[15] but certainly since 1873 all without exception, both English and foreign, were revaccinated; and in the Army every recruit has been revaccinated since 1860 (see 2nd Report, Q. 3,453, 3,455; and for the Navy, Q. 2,645, 6, 3,212-13, and 3,226-3,229). Brigade-Surgeon William Nash, M.D., informed the Commission that the vaccination and revaccination of the Army was “as perfect as endeavours can make it,” and that he can make no suggestion to increase its thoroughness (Q. 3,559, 3,560). Turning now to the diagram (No. XI.) which represents the official statistics, the two lower solid lines show the small-pox death-rate per 100,000 of the force of the Army and Navy for each year, from 1860 to 1894. The lower thick line shows the Army mortality, the thin line that of the Navy. The two higher lines show the total death-rate from disease of the Navy, and of the Home force of the Army, as the tables supplied do not separate the deaths by disease of that portion of the Army stationed abroad.