In Schleswig-Holstein the city of Altona, which bordered on Hamburg, was very severely attacked by small-pox. No detailed information regarding the epidemic there is available; the population of the city in the year 1871 was 83,177, and in the same year 965 persons (116·0 per 10,000 inhabitants) succumbed to small-pox; in the following year there were only two deaths. In the year 1871 only three districts were more severely attacked by the disease than Altona—Rendsburg, Steinburg, and Stollmarn. The city of Rendsburg was an important seat of the disease, which broke out there on November 16 among the prisoners, shortly after their arrival; the epidemic, however, was rather mild, since of 2,590 prisoners only forty-four contracted the disease and only three died. The garrison, which averaged 2,876 men, was somewhat more severely attacked; 109 men contracted the disease (37·9 per 1,000), and four succumbed to it. The epidemic became unusually widespread in the city; 114 inhabitants (98·8 per 10,000) succumbed to small-pox there in the year 1871. Of 5,000 prisoners confined in Lockstedt, 47 contracted small-pox, the first in October, and the rest in February; only a few men in the German garrison were attacked by the disease. From Lockstedt the disease spread to the surrounding country, including Itzehoe, where it caused 102 deaths (110·6 per 10,000 inhabitants) in the year 1871. From there small-pox spread in all directions; it was conveyed to Stollmarn chiefly by working-men from Hamburg and Altona who lived in the country. In the city of Lübeck, the population of which in the year 1871 was 52,158, the following number of people, according to the report of the local Bureau of Statistics, contracted and succumbed to small-pox: _Patients._ _Deaths._ 1870 24 1 1871 315 36 1872 99 15 Judging from this table, the city was not very severely attacked by the disease.