1892 MACKENZIE, Sir James (1853 – 1925)

Pulsation in the veins, with the description of a method for graphically recording them.

The phlebograph, which developed into the polygraph. With it Mackenzie obtained simultaneous tracings of the pulsations of the jugular vein and radial artery.

GMN 834 · https://historyofmedicine.com/id/331

1902 MACKENZIE, Sir James (1853 – 1925)

The study of the pulse.

In his classic monograph Mackenzie included (p. 10) a description and illustration of his polygraph, with which he made simultaneous tracings of the pulse, apex beat, etc.

GMN 2812 · https://historyofmedicine.com/id/3474