Prof. Albanese has proposed injection of defibrinated blood into an artery, either the radial or posterior tibial, as a substitute for the intra-venous injection. The artery is exposed, punctured, and the blood thrown into it, in the same way as in the operation on the vein. It is claimed for this method that thrombosis is less apt to occur, and that the danger arising from the introduction of air is obviated. When a large amount of blood is necessary, it is more safely introduced by the arterial system, because, having to traverse the capillaries before reaching the right side of the heart, sudden distention of this organ is avoided. Prof. Hüter, who has especially advocated this method, reports a number of cases successfully performed in this way, and Asché has collected a number of others.