=Typhoid, Measles, Tuberculosis.=--Transfusion has been tried for several other bacterial infections with varying results. McClure has administered immunized blood to a typhoid patient with a remarkably good result. Ottenberg and Libmann have transfused five typhoid patients, all of whom were desperately ill; two of them recovered. Transfusion has also been used for intestinal hæmorrhage in typhoid, but this is chiefly with the object of combating anæmia. Subcutaneous injection of blood has been successfully used by Terrien in a case of malignant measles; the donor had had measles six months previously. Freilich has recently transfused six patients suffering from tuberculosis, but without benefit. He is at present testing the use of blood from donors who show a positive complement fixation test for the tubercle bacillus. It is evident that treatment with immunized blood is still in an experimental stage, but it merits further trials, all the circumstances of which should be carefully recorded. =Toxæmias of Pregnancy.=--The treatment of eclampsia by blood transfusion was first employed by Kimpton, who speaks favourably of the results obtained. Later it was independently suggested to Blair Bell, who was the first to employ it in this country, by certain investigations into the facts of immunology. It had been found that symptoms resembling those of eclampsia could be produced in mice by injecting into them an extract of placenta, whether from a healthy or an eclamptic woman; the same results were obtained by injecting fresh serum from similar individuals. Further, if the placental extract was mixed with serum from a normal person of either sex, the effects were not obtained, and it was inferred that the placental toxin had been neutralized by antibodies in the serum. If, however, the placental extract was mixed with serum obtained from the blood of an eclamptic patient, then the toxic symptoms were obtained as before. Apparently, therefore, the serum in eclampsia lacks certain antibodies which are present in the serum of normal individuals. If these observations had been correctly interpreted, it seemed reasonable to suppose that blood from a normal person would supply an eclamptic patient with the antibodies which she lacks. The patient treated by Blair Bell was already comatose and apparently dying. She was given 500 cc. of citrated blood and rapidly recovered; her convalescence was uninterrupted. It would be unwise to found great hopes on a single case, but the treatment undoubtedly merits further trial. Transfusion has also been used by Keator in treating the toxæmia of early pregnancy, and Morel has successfully used the blood of a healthy pregnant woman for the same purpose. Gettler recommends the use of alkalinized blood for “acidosis” in pregnancy. At present, however, little evidence can be adduced in favour of this form of treatment.