26-volume run of The Harvey Lectures: Delivered Under the Auspices of the Harvey Society of New York, covering the lecture years 1943–1944 through 1971–1972 (commonly issued as annual “Series” volumes). A substantial mid-20th-century record of landmark biomedical research lectures, typically published in hardcovers by period publishers (often including The Science Press / Academic Press depending on year). Uniform scholarly reference set, ideal for medical history, physiology, and biomedical collections.