Parasites: A Treatise on the Entozoa of Man and Animals Including Some Account of the Ectozoa

This mid‑victorian scientific treatise offers a sweeping overview of the world of parasites, ranging from tiny worms in humans to the macroscopic hitch‑hikers of birds, reptiles and fish. The author builds on an earlier, out‑of‑print work, weaving together fragments of that text with fresh observations drawn from a vast, scattered literature. By sidestepping dense anatomical detail, the book stays readable for anyone interested in how parasites move between hosts and shape disease patterns.

Packed with dozens of illustrations and an exhaustive bibliography, the volume also explains historic measurement units—like the “line,” an old inch fraction—helping listeners picture the scale of these organisms. Though it deliberately avoids therapeutic advice, the work highlights the ecological and epidemiological roles parasites play, urging a broader view beyond human disease alone. For modern naturalists, medical historians, or curious listeners, it offers a window into 19th‑century scientific thought and the foundations of contemporary parasitology.