Descripción: The Academy of Natural Sciences.
«One of the great American scientists of the 19th-Century, Joseph Leidy, possessed an encyclopedic knowledge of the natural world. Best known as the Father of American Vertebrate Paleontology, he also pioneered the fields of Parasitology and Protozoology, and was the preeminent Anatomist of his time. He was also an influential teacher of Natural History and an expert in areas as diverse as entomology, geology and pathology.»