Paper, 'On the coagulation of the blood' by William Dobinson Halliburton Halliburton writes: 'The theory to account for the coagulation of the blood which is most generally accepted at the present day is that of Hammarsten; he teaches that coagulation is dependent upon the conversion of a proteid substance, fibrinogen, which exists in solution in the plasma, into fibrin by means of a ferment liberated by the disintegration of the white blood corpuscles which occurs when the blood leaves the living blood-vessel.' Annotations in pencil and ink throughout. Subject: Physiology / Haematology Received 20 March 1888. Read 26 April 1888. Communicated by Edward Albert Sharpey-Schafer. A version of this paper was published in volume 44 of the Proceedings of the Royal Society as 'On the coagulation of the blood'. 1888