1778_120.jpg -

Copperplate engraving with delicate hand-stippling for shading (typical of the period, known as manière pointillée or stipple engraving).

Based on the style, this could be from a major anatomical atlas, such as those by William Hunter (specifically studies on the lymphatic system), or a translation of European, French, or Dutch anatomy books. 1778_120.jpg

The precision in showing the convergence of vessels toward the thoracic duct or major abdominal nodes is quite high for the era. 3. Historical Context (18th Century Anatomy) During the 18th century, anatomists were intensely focused

These lines represent the lymphatic system (lymph vessels and nodes) or perhaps a stylized, detailed diagram of the deep abdominal veins . Given the intricate, branching, tree-like, and net-like structure, it is likely a 18th-century representation of lymphatic vessels. During the 18th century

During the 18th century, anatomists were intensely focused on mapping the "white vessels" (lymphatics) to understand nutrition and circulation.