Scope and Contents Although most of these treatises appeared in the Academy's early serials, some predated that time. A list of the articles by some 81 naturalists has been prepared and is available for reference. The papers themselves deal with all sorts of natural history subjects, some of the more prolific authors being: Spencer F. Baird, John Cassin, Charles Girard, Gerard Troost, Lardner Vanuxem, and S. W. Woodhouse. These writings are preserved with the intention of providing research workers with...

Scope and Contents From the Collection: The collection consists of 704 letters addressed to Haldeman, Constantine Rafinesque and Thomas Say, with a letterbook of 22 letters written by Haldeman. In subject, the letters refer to paleontology, conchology, entomology, ichthyology, to Indian relics and to spelling reform. A letter from Leidy is illustrated and several of those written by Haldeman bear pencil sketches. In his letterbook is information about a proposed U. S. Naval Expedition to South America with J. G. Strain, and...

Scope and Contents From the Collection: The collection consists of 704 letters addressed to Haldeman, Constantine Rafinesque and Thomas Say, with a letterbook of 22 letters written by Haldeman. In subject, the letters refer to paleontology, conchology, entomology, ichthyology, to Indian relics and to spelling reform. A letter from Leidy is illustrated and several of those written by Haldeman bear pencil sketches. In his letterbook is information about a proposed U. S. Naval Expedition to South America with J. G. Strain, and...

Scope and Contents From the Collection: The collection consists of 704 letters addressed to Haldeman, Constantine Rafinesque and Thomas Say, with a letterbook of 22 letters written by Haldeman. In subject, the letters refer to paleontology, conchology, entomology, ichthyology, to Indian relics and to spelling reform. A letter from Leidy is illustrated and several of those written by Haldeman bear pencil sketches. In his letterbook is information about a proposed U. S. Naval Expedition to South America with J. G. Strain, and...

Overview Charles Eastwick Smith (1820-1900) was an engineer and inventor involved in railroad, ironworks and steel. His interest in botany led him to membership at the Academy of Natural Sciences where he held several positions from 1851 until his death. Over the years Smith compiled an herbarium of specimens found within 15 miles of Philadelphia, which he bequeathed to the Academy. The collection contains letters from botanists, a number of booksellers, and other correspondents. In addition to the...

Scope and Contents A pharmacist and botanist of Bethlehem, Pennsylvania, Rau became an authority on mosses and fungi, assembling large collections which mostly went to the American Museum of Natural History in New York. Elected a correspondent of this Academy in 1883, he bequeathed a collection of books to it (mostly from L. D. von Schweinitz library) and an herbarium of flowering plants. He published jointly with A. B. Hervey, a Catalogue of North American Musci, 1880. Formerly in the keeping of...

Scope and Contents

These letters written to John Lawrence LeConte by 101 authors are for the most part taken from the files of the American Entomological Society, but include also 18 written by T. W. Harris to John LeConte. The collection was archived from the Entomological Department and here preserved under LeConte's name.

Overview Joseph Mellick Leidy (1823-1891), one of the great American scientists of the 19th century, possessed a vast 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. The Joseph Leidy Correspondence collection contains...

Overview Joseph Leidy (1823-1891), one of the great American scientists of the 19th century, possessed a vast 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. The Joseph Leidy Photocopied Correspondence represent the letters...