John Simon, Medical Officer of Privy Council.

The small-pox epidemic of 1870-3 was part of a world-wide prevalence of the disease. It seems universally testified by skilled observers, that no small-pox epidemic in living memory had been, (if I may so express it,) of equally malignant intention with that which is here in question.—Public Health Reports. No. 4, for 1874. P.9.