C. The following references are chiefly to works on plague and fleas.

1. Advisory Committee (1905-1909), Reports on Plague Investigations in India. Journal of Hygiene, Vols. V., VI., VII., VIII. and X.

These volumes contain the five “Extra Plague Numbers.” Many references to observations and experiments on rats and fleas.

2. Hankin (1905), Plague Epidemiology. Journal of Hygiene, Vol. V., p. 48.

3. Ogata (1897), Ueber die Pestepidemie in Formosa. Centralbl. für Bacteriol., Vol. XXI., p. 769.

4. Simond (1898), La Propagation de la Peste. Annales de l’Institut Pasteur. Vol. XII., p. 625.

5. Hankin (1898), La Propagation de la Peste. Annales de l’Institut Pasteur, Vol. XII., p. 705.

6. Verjbitski (1908), The part played by insects in the epidemiology of the plague. Journal of Hygiene, Vol. VIII., p. 162.

Experiments made 1902-3 at Cronstadt and S. Petersburg with fleas. This important research was written in Russian and not translated or published till 1908.

7. Doane (1910), Insects and Disease. Constable and Co.