A Manual of External Parasites

"A Manual of External Parasites" is a comprehensive and foundational scientific study focusing on the classification, biology, and identification of ectoparasites. Written by the distinguished entomologist Henry Ellsworth Ewing, this work provides systematic and detailed insights into five major groups of external parasites: mites, ticks, sucking lice, biting lice, and fleas.

Each section of the manual meticulously explores the morphology, life history, and economic importance of these organisms, which significantly affect both human populations and domestic animals. The book serves as an essential reference for understanding the complex relationships between hosts and their parasitic counterparts, offering taxonomic keys for identification and thorough descriptions of various genera and species.

As a significant contribution to the fields of entomology and parasitology, "A Manual of External Parasites" reflects the scientific rigor of the early twentieth century. It remains a valuable resource for researchers, veterinarians, and students interested in the historical development of biological classification and the study of disease vectors.

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This work is in the public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work.

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