Copenhagen

CLIMATE AND HEALTH.

TH E QUAY AT TH E EXCHANGE

pox is of such rare occurrence that few physicians in C op en ­ hagen have ever had the chance of seeing it; single cases have occurred, where the disease has been comm unicated by seamen to persons who have not been re-vaccinated; bu t the authorities have always succeeded in immediately stam ping it out. The excellent sanitary condition of C openhagen is to a g reat extent ow ing to its splendid drinking-w ater. The w ater supply is, in contrast to that of London for instance, entirely und e r the m anagem ent of the municipal authorities, and the whole of it is obtained from Artesian wells, surface-water being no longer used. Every week a bacteriological exam ination of the w ater is made. As it contains iron, it cannot be conveyed direct from the springs into the pipes, bu t m ust previously be exposed to the oxidation of the air and filtered. The sewerage system of Copenhagen is a very com plete and efficient one; the only draw back to it being that the se­ w age is carried into the harbour. However, g reat im p rove­ ments in this respect are already in progress. Large u n d e r­ g ro u n d canals will convey the sewage u n d e r the h a rb o u r to

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