WILSON, L.B., AND CHANNING, W.M. Studies in _Pyroplasmosis hominis_ (Spotted Fever or Tick Fever of the Rocky Mountains). _Jour. Infec. Diseases_, 1, 1904, pp. 31-57. Evidence that the disease is transmitted solely by means of the ticks. TICKS AND VARIOUS DISEASES BANKS, NATHAN. Tick-borne Diseases and Their Origin. _Jour. Eco. Ento._, Vol. I, No. 3, 1908, pp. 213-215. Shows how ticks may become important disease-carriers by changing their hosts as the normal host is exterminated, or for other reasons. BANKS, NATHAN. A Revision of the Ixodoidea or Ticks of the United States. _Tech. Series No. 15, Bull. of Bureau of Ento., U.S. Dept. Agric._, 1908. Structure, life-history, classification, catalogue, bibliography. BARBER, C.A. The Tick Pest in the Tropics. _Nature_, 52, 1895, pp. 197-200. Direct and indirect effects of ticks on their hosts. CHRISTY, C. _Ornithodoros moubata_ and Tick Fever in Man. _Brit. Med. Jour._, Vol. II, 1903, p. 652. Relation of the tick to _Filaria perstans_. DUTTON, J.E., AND TODD, J.L. The Nature of Human Tick Fever in the Eastern Part of the Congo Free State with Notes on the Distribution and Bionomics of the Tick. Liverpool School of Tropical Medicine. _Memoir_, 17, Nov., 1905, pp. 1-18. HOOKER, W.A. A Review of the Present Knowledge of the Rôle of Ticks in the Transmission of Disease. _Jour. Eco. Ento._, Vol. I, No. 1, 1908, p. 65. Review of the subject; table showing zoölogical position of parasites transmitted by ticks. Table showing zoölogical position of ticks. HOOKER, W.A. Life-history, Habits and Methods of Study of the Ixodoidea. _Jour. Eco. Ento._, Vol. 1, No. 1, 1908, p. 34. Notes on several species, especially _M. annulatus_. Host relationship; adaptations as factors in host relationship; mating; geographical distribution; methods of breeding, etc. HOOKER, W.A. Some Host Relations of Ticks. _Jour. Eco. Ento._, Vol. 2, No. 3, 1909, p. 251. Notes on ticks found on various hosts. HUNTER, W.D., AND HOOKER, W.A. Information Concerning the North American Fever Tick with Notes on Other Species. _Bull. 72, Bureau of Ento._, 1907. Life-history, host relation, etc., of fever tick; classification and notes on other species; bibliography divided into sections. LOUNSBURY, C.P. Habits and Peculiarities of Some South African Ticks. _Rept. of the Brit. Assn. for the Advancement of Sci._, 1905 (South Africa), pp. 282-291. MCCRAE, THOMAS. Relapsing Fever. _Osler's Mod. Med._, Vol. II, p. 245, 1907. Ætiology, symptoms, treatment, etc. (Apparently communicated by blood-sucking insects.) NEWSTEAD, R. On the Pathogenic Ticks Concerned in the Distribution of Diseases in Man. _Brit. Med. Jour._, II, 1905, pp. 1695-97. Classification and habits, particularly of _Ornithodoros moubata_.