Dear Sir: —InThe Journalof April 9, you published a letter from me criticising an article by Prof. Hunter, of Edinburgh, on the subject of transfusion. In that letter I insisted that Prof. Hunter's conclusions were formulated on theories which were in dispute and inconclusive, and that the published results of this operation showed it to be of permanent benefit, when successfully performed. InThe Journalof July 9 and 16 is published a lecture by Prof. H. von Ziemssen, on "Subcutaneous Blood Injections," which fully sustains my position. Prof. Ziemssen says: "I am convinced that in these cases (pernicious anaemia) the haemoglobin is not merely temporarily improved, but a cure may be obtained, possibly by the action of the blood in a way unknown to us." In his opinion the therapeutic value of blood is so great as to more than counterbalance the depressing effects of chloroform