[5] F. B. Talbot, Boston Med. and Surg. Jour., CLXXV (1916), 409.
[6] See, for example, Schloss, loc. cit.
[7] Johns Hopkins Hosp. Bull., XXV (1914), 78.
[8] See, for example, K. Koessler, Ill. Med. Jour., XXIII (1913), 66; Bronfenbrenner, Andrews, and Scott, Jour. Amer. Med. Assoc., LXIV (1915), 1306; F. B. Talbot, Boston Med. and Surg. Jour., CLXXI (1914), 708.
[9] Jour. Amer. Med. Assoc., LXV (1915), 1837.
[10] Strickler and Goldberg, Jour. Amer. Med. Assoc., LXVI (1916), 249.
[11] Jour. Cutaneous Dis., XXXIV (1916), 70.
[12] Amer. Jour. Dis. of Children, XI (1916), 441.
[13] Science, XV (1902), 1016.
[14] U.S. Dept. of Agric., Div. of Botany, Bull. 20, 1898.