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Credit
Observations on leprosy : involving certain hypothetical views on its intimate pathology and on which has been grounded the successful treatment of the disease by means of carbolic acid in union with the vapour of water at 212[deg] : and further suggesting the use of like means in the treatment of zymotic disease generally in man and beast / by William Johnston. Public Domain Mark. Source: Wellcome Collection.
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This material has been provided by The Royal College of Surgeons of England. The original may be consulted at The Royal College of Surgeons of England.