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A treatise on the putrid constitution of 1777 and the preceding years, and the pestilential one of 1778. Of the obstinate disorders that appeared in the former, and the malignant and pestilential fevers that arose in the latter : their causes, and the best method of preventing them the due administration of medicine, especially in the former, and the general method of their cure also of the causes of disease in general, with some peculiar remarks on some common errors and dangerous mistakes in the use of the bark and other medicines / by John Barker. Public Domain Mark. Source: Wellcome Collection.