SPHYGMOGRAPH/1881
Two types of sphygmograph being used on a patient to measure heart beat and pulse
Picture No
10106300
Media ID
47323080
Size
3695px x 4073px
(2.1MB)
Credit
Mary Evans Picture Library
Source
Illustration by A. Demarle in Rengade's La Vie Normale et le Sante', page 297
Date
1881
