Autograph signature of Baron de Hüpsch. Offers exchange of fossils, rocks, minerals, and ores, for quadrupeds, birds, fish, shells, insects, corals and marine plants, fossils and minerals. Several similar such letters from different dates are also in the American Philosophical Society collections.
Advertises the exhibition of a "sea-serpent" captured near the coast of Cape Ann Harbor. At first glance it appears that the serpent is 50 feet long, but closer examination of this carefully worded document reveals that the animal on exhibit is merely the "same breed" as the "great one" which was able to elude its would-be captors.
Circular letter asking for funding to support the collection of objects in natural history from across the United States. Interested parties are requested to direct their replies to John Le Conte, John Torrey, and William Cooper.
Botanical table of specimens observed in Russia. The table is organized according to the "natural method."; Six individual sheets intended to be put together to form a single broadside. Extra oversized. Located in map cabinet.
Requests subscriptions for the amount of $1000 for which is promised in exchange a complete set of duplicate specimens collected. Subscriptions to be sent to Prof. Albert Hopkins. Signed in type by Wallace Freeman, Ja[me]s H. Canfield and J. Boyd Thacher, members of the financial committee. Page 3 includes recommendations by Joseph Henry of the Smithsonian Institution (including a promise to loan scientific instruments from that institution) and C. H. Davis of the U. S. Naval Observatory.
Describes purpose and present state of Peale's Museum. Peale's attempt to create a public institution of his museum began with the creation of a board of "visitors" or trustees who were to initially provide advice and financial support, and later completely oversee the museum's operation. Signed in type by Charles Willson Peale.
Circular letter, sent to Benjamin Smith Barton on May 18, 1809, requesting the receiver to communicate the results of their natural history observations to the society. Indicates that the society is especially interested in specimens of plants and minerals. Autograph signatures of Sam[uel] Hazard, Sam[uel] Belton, and Sam[ue]l Colhoun, members of the correspondence committee of the Philadelphia Linnean Society.