RANSOM, B.H. How Parasites Are Transmitted. _Year Book U.S. Dept. Agric._, 1905, pp. 139-166 (pub. 1906). Discusses the ways in which parasites of all classes are transmitted. SAMBON, L. The Part Played by Metazoan Parasites in Tropical Pathology. _Jour. Trop. Med. & Hyg._, Vol. XI, Jan. 15, 1908. A comprehensive discussion of this subject. SHIPLEY, A.E., AND FEARNSIDES, E.G. Effects of Metazoan Parasites on Their Hosts. _Jour. Econom. Biology_, Vol. I, 1906, pp. 41-62. Discusses injury due to mere presence of parasite in host; to the migration of the parasite; loss to host by feeding of parasites; injury by certain toxins. STILES, C.W. Diseases Caused by Animal Parasites. _Osler's Mod. Med._, Vol. I, 1907, p. 525. General discussion; Trematodes; Cestodes; Roundworms; Acariasis; Parasitic Insects; Myiasis. VAN BENEDEN, P.J. Animal Parasites and Messmates. 1889. Contains much that is interesting. WARD, HENRY B. Influence of Parasitism on the Host. _Proc. Amer. Assn. for Advancement of Science_, Vol. 56, 1907. A comprehensive statement of this subject. List of literature. PROTOZOA CALKINS, G.N. The Protozoa. _Osler's Mod. Med._, Vol. I, 1907, p. 353. General notes on the Protozoa; classification; reproduction; life-cycle of various forms. Regards Protozoa as subkingdom and the four great divisions as phyla. CALKINS, G.N. Protozoölogy. N.Y., 1909. Chapters on parasitism, pathogenic Protozoa, etc. CLARKE, J.J. Protozoa and Disease. London, 1903, Pt. I. Discusses the various protozoa that cause disease, and refers frequently to those that are transferred from host to host by insects. CLARKE, J.J. Protozoa and Disease. London, 1908. Part II, comprising sections on the causation of smallpox, syphilis and cancer. Notes on parasitic Protozoa, tropical diseases, ticks, piroplasmosis, etc. DANIELS, C.W. Persistence of the Tropical Diseases of Man Due to Protozoa. _Jour. Trop. Med. & Hyg._, 12, Aug. 2, 1909, pp. 232-234. Same in _Lancet_, II, 1909, p. 460. Good summary of present knowledge of the subject. MINCHIN, E.A. Protozoa. In Albutt and Rolleston's _System of Medicine_, II, 1907, pp. 9-122. A comprehensive chapter on Protozoa. Many parasitic forms are figured and described. Bibliography. MINCHIN, E.A. The Sporozoa. In Lankester's _Treatise on Zoöl._, Pt. I, pp. 150-360, 1903. Best account of this group, list of Sporozoan hosts. Bibliography. BACTERIA FLEXNER, SIMON. Relation of Bacteria and Sporozoa to Disease. _Science_, N.S., Vol. 27, No. 682, pp. 133-136. On these pages discusses relation of bacteria and Protozoa to human diseases. JORDAN, EDWIN O. General Bacteriology. Philad., 1898. A good general treatment of the subject.