[7] J. A. Kolmer, _Infection, Immunity, and Specific Therapy_, ed. 2, Saunders Co., 1917, p. 287: “With the increasing number of blood transfusions the phenomena of iso-agglutination and iso-hæmolysis are of considerable practical importance, especially if the patient is suffering from cancer, when the serum is likely to be actively hæmolytic for the donor’s corpuscles.” No authority is given. [8] This embodies the same principle as the “dropper” designed by R. D. Laurie. [9] A very convenient form of tourniquet is that designed by R. G. Canti. It is sold by Messrs. Maw & Sons, and by Messrs. Allen & Hanburys.