[3] Friedenthal, Archiv für Anatomie und Physiologie, 1900, p. 494.

[4] Deutsch, Bulletin Medical, Sept. 8, 1900; and Centralblatt für Bakteriologie, Band xxix. p. 661.

[5] Uhlenhuth, Deutsch Medicinische Wochenschrift, 1901, Nos. 6, 17, 45.

[6] Wasserman and Schutze, Berlin Klin. Wochenschr., Feb. 21, 1901.

[7] Nuttall, Jour. Hygiene, vol. i., 1901, p. 367; B. M. J., vol. i., 1901, p. 669.

[8] Tarchetti, Gazz. degli Osped., May 19, 1901; B. M. J., vol. i., 1901.

[9] Grünbaum, Lancet, Jan. 18, 1902.

[10] Metchnikoff, Centralblatt für Bakteriologie, April 18, 1901.

[11] M‘Weeney, Jour. State Med., vol. ix. No. 7, p. 378. Lancet, June 18, 1910.

[12] M‘Weeney, Lancet, June 18, 1910.