Because the people on the Labrador can seldom be brought to understand that a patient with this ailment must be kept warm and free from exposure or chill until the period of rash is passed, it is too often a fatal disease there--and an epidemic is sure to result in many deaths. In tent life, in time of gales and driving storms, it is frequently difficult, and sometimes indeed impossible, to properly care for the patients, for the tents of the people are seldom stormproof or rainproof.