Note 41 — Chapter I · ON THE PHYSIOLOGICAL ACTION OF POISONS.
Reading edition
Edin. Med. and Surg. Journal, li. 330; liv. 339; lvi. 104. The Hæmadynamometer is an instrument invented by M. Poiseulle, which, when communicating with the interior of a blood-vessel, indicates the force of the circulation by the pressure of the blood on a column of mercury.