Pleistocene Preserved: The Lost Bone Cave of Port Kennedy

On October 29, 1895, more than 90 members attended a meeting at the Academy of Natural Sciences in Philadelphia. Following the routine business of the publication committee’s report and the announcement of one member’s death, Henry Chapman Mercer (1856–1930) rose to speak about the ongoing exploration of a geological feature known as Irwin’s Cave in Montgomery County. The Philadelphia Inquirer...
read more

The Jefferis Collection: A Pennsylvania Treasure

In February 1905, four men entered a small brick building on Miner Street in West Chester and began a month of careful labor. Using cotton and fine wood shavings, they individually wrapped 35,000 mineral speci­mens with their handwritten labels, carefully placed them into boxes, nailed the boxes shut and hauled box after box to the West Chester railroad station. Newspaper reporters kept the...
read more