A sphygmograph: an instrument (also known as a 'pulsometer') for recording graphically the features of the pulse and variations in blood pressure. Wood engraving, 1850/1880?.
- Date:
- [1850/1880?]
- Reference:
- 568357i
Licence: Public Domain Mark
Credit: A sphygmograph: an instrument (also known as a 'pulsometer') for recording graphically the features of the pulse and variations in blood pressure. Wood engraving, 1850/1880?. Wellcome Collection. Source: Wellcome Collection.