A History of Depressed Skull Fractures from Ancient Times to 1800

The story of managing depressed fractures illustrates how knowledge of proven value does not always get handed down. Celsus was the first to describe sensible management for depressed fractures. As he wrote in Latin this was forgotten. Galen’s Greek writings survived forming the basis of management until the sixteenth century. In 1517, Hans von Gersdorff published a formidable illustrated surgical text. One illustration depicts an instrument for elevating depressed bone fragments. It looked dramatic but could not work and its defects were finally defined in the eighteenth century. Ambroise Paré used a bone punch just as we do today, but no later surgeon mentions this, though the instrument was well known. Elements of chance, fashion, emotionally powerful illustrations, and perhaps stubbornness had a profound effect on management delaying rational treatment for centuries.     

A Manchu itinerary

Abstract

Eighty‐nine business letters from European map sellers to the London firm of Thomas Jefferys and William Faden are preserved in the William L. Clements Library at the University of Michigan. Dating from the decade 1773–1783, the letters reveal through the invoices, accounts payable, bills of lading, and orders many detailed aspects of the map trade in the eighteenth century at the time of the War of American Independence. Special attention is drawn to the exchange of maps between England and France during this period of war.