
The SciencesMarch 1, 1957
Galen
This renowned physician of the ancient world established experimental physiology. Although the customs of his time forbade the dissection of the human body, he learned much about it by operating on animals

Galen
This renowned physician of the ancient world established experimental physiology. Although the customs of his time forbade the dissection of the human body, he learned much about it by operating on animals

William Harvey
The 17th-century English physician who discovered the circulation of the blood was a poor experimenter but laid the basis of modern biology and medicine