53. COLE, H. P.: “Transfusion and pellagra.” _Journ. Am. Med. Assoc._, 1911, lvi. 584. 54. COOLEY, T. B., & VAUGHAN, J. W.: “A simple method of blood transfusion.” _Journ. Am. Med. Assoc._, 1913, 435. 55. COWELL, E. M.: “The initiation of wound shock.” _Report of the Med. Res. Com._, ii. (4), 1919, 99. 56. COX, R.: “Blood transfusion in the seventeenth century.” _Journ. Am. Med. Assoc._, 1914, lxii. 222. 57. COX, T.: “An account of another experiment of transfusion, viz. of bleeding a mangy into a sound dog.” _Philosophical Trans._, 1667, ii. 451. 58. CRILE, G. W.: “The technique of direct transfusion of blood.” _Ann. Surg._, 1907, xlvi. 329. 59. CRILE, G. W.: “Hæmorrhage and transfusion.” Appleton & Co., N.Y., 1909. 60. CROTTI, A.: “Indirect transfusion of blood.” _Surg. Gynec. and Obstet._, 1914, xviii. 236. 61. CULPEPPER, W. L.: “Report on five thousand bloods typed, using Moss’s grouping.” _Journ. Lab. and Clin. Med._, 1921, vi. 276. 62. CURCHOD, H.: “Transfusion of blood.” _Rev. méd. de la Suisse_. Rome, 1920, xl. 666. 63. CURTIS, A. H., & DAVID, V. C.: “Transfusion of blood by a new method, allowing accurate measurement.” _Journ. Am. Med. Assoc._, 1911, lvi. 35. 64. DALE, H. H., and others: “Surgical shock and some allied conditions.” _Brit. Med. Journ._, 1917, i. 381. 65. DALE, H. H., and others: “Traumatic toxæmia as a factor in shock.” _Rep. of the Med. Res. Com._, viii., March 1919. 66. DARWIN, ERASMUS: “Zoonomia; or the Laws of Life.” London, 1794. 2 vols., 4^o. Vol. i. p. 373; vol. ii. pp. 120, 605, 676. 67. DAVID, V. C., & CURTIS, A. H.: “Experiments in the treatment of acute anæmia by blood transfusion and by intravenous saline infusion.” _Surg. Gyn. and Obstet._, 1912, xv. 476. 68. DAVID, V. C., & CURTIS, A. H.: “Recent experiences with blood transfusion.” _Journ. Am. Med. Assoc._, 1914, lxii. 775. 69. DAWSON, P. M.: “The changes in the heart rate and blood pressures resulting from severe hæmorrhage and subsequent infusion of sodium bicarbonate.” _Journ. Exp. Med._, 1905, vii. 1. 70. DENYS, J.: “A letter concerning a new way of curing sundry diseases by transfusion of blood.” _Philosophical Trans._, 1667, ii. 489. 71. DENYS, J.: “An extract of a letter touching a late cure of an inveterate phrensy by the transfusion of blood.” _Philosophical Trans._, 1667, ii. 617. 72. DIEFFENBACH, J. F.: “Die Transfusion des Blutes und die Infusion der Arzneien in Blutgefässe.” Berlin, 1828. 73. DIJK, H. VAN: “Malaria induced by convalescent’s serum.” _Nederl. Tijdschr. v. Geneesk._, 1920, ii. 1181. 74. DORRANCE, G. M.: “Indications for blood transfusion.” _Am. Journ. Med. Sci._, 1917, cliv. 216. 75. DORRANCE, G. M., & GINSBURG, N.: “Transfusion: history, development, present status and technique of operation.” _N.Y. Med. Journ._, 1908, lxxxvii. 941.