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"This book represents essentially the subject matter of the course in protozoology given by the writers in the School of Hygiene and Public Health of the Johns Hopkins University." The hope that it may be useful to students in other institutions and to health officers and physicians, expressed by the writers, seems certain to be realized, for they have made a noteworthy contribution to the subject and one for which there has been a decided need. From the enormous literature on the protozoa they have made a rigid selection, but have omitted nothing that a rather critical search has suggested. While human parasites give the leading motive, many allied forms in lower animals are mentioned and described so fully that the reader cannot fail to keep in mind the broader aspects of protozoology. The plan is to describe "the general biology of the protozoa, as indicated by each group studied,
Human Protozoology.. Arch Intern Med (Chic). 1924;34(5):737-738. doi:10.1001/archinte.1924.00120050154016