The nature of an intermitting fever and ague consider'd ... with the best and most rational method of cure ... To which is added, an extraordinary case of one Widow Sparkes, of eighty years of age, who upon the cure of an ulcer in her leg, had her menses return / [Simon Mason].

Licence: Public Domain Mark

Credit: The nature of an intermitting fever and ague consider'd ... with the best and most rational method of cure ... To which is added, an extraordinary case of one Widow Sparkes, of eighty years of age, who upon the cure of an ulcer in her leg, had her menses return / [Simon Mason]. Source: Wellcome Collection.