An anatomical disquisition on the motion of the heart & blood in animals

In this landmark nineteenth‑century treatise, a determined physician steps beyond the shadows of Aristotle and Galen to chart the hidden pathways of life itself. The author presents a clear, methodical argument for the circulation of blood, blending meticulous observation with daring experiments that defied the prevailing dogma of the day. An introductory essay situates the work within the broader revival of empirical science, recalling the daring spirits of Galileo and the early modern anatomists.

Harvey’s concise, hundred‑page volume walks the listener through the heart’s rhythmic pumping, the twin circuits of pulmonary and systemic flow, and the astonishing notion that blood returns to its point of origin. Written in the lively prose of its era, the text retains its original quirks—spelling variations, archaic hyphenation, and occasional typographical idiosyncrasies—while modern editorial notes guide the modern ear. Today, scholars and curious listeners alike find the work a vivid snapshot of the moment when observation finally overruled authority, and its insights continue to resonate in every classroom of physiology.