Historical sketch of the opinions entertained by medical men respecting the varieties and the secondary occurrence of small-pox ; with observations on the nature and extent of the security afforded by vaccination against attacks of that disease : in a letter to Sir James M'Grigor ... / By John Thomson.

Licence: Public Domain Mark

Credit: Historical sketch of the opinions entertained by medical men respecting the varieties and the secondary occurrence of small-pox ; with observations on the nature and extent of the security afforded by vaccination against attacks of that disease : in a letter to Sir James M'Grigor ... / By John Thomson. Source: Wellcome Collection.

Provider: This material has been provided by London School of Hygiene & Tropical Medicine Library & Archives Service. The original may be consulted at London School of Hygiene & Tropical Medicine Library & Archives Service.