An investigation regarding the action of rubidium and caesium salts compared with the action of potassium salts on the ventricle of the frog's heart / by Sydney Ringer.

Licence: Public Domain Mark

Credit: An investigation regarding the action of rubidium and caesium salts compared with the action of potassium salts on the ventricle of the frog's heart / by Sydney Ringer. Source: Wellcome Collection.

Provider: This material has been provided by The Royal College of Surgeons of England. The original may be consulted at The Royal College of Surgeons of England.