Joseph Priestley writes an unknown recipient and notes that he has enclosed "two copies of my Paper for the Philosophical Transactions." In addition, Priestley requests a "fresh stock of retorts,...

Joseph Priestley writes to Thomas Wedgwood about supplies for the laboratory that Priestley is building after his previous one was destroyed and discusses invitations to move from England to France. Wedgwood's family operated the Etruria Works ceramics factory. Transcript included.

Dr. Joseph Priestley writes to Dr. Benjamin Smith Barton regarding Antiphlogistion enemies, a yellow fever outbreak, and scientist Dr. John Maclean. "I wish that you would give me any information that you may get of the notions of my Antiphlogistion enemies," as Priestley explains. Priestley...

A six page bibliography of 75 books written by Dr. Joseph Priestley.

Thomas C. Hambly writes James Hamilton Jr. to express his opposition to a proposed railroad "running... from the River Susquehanna to [York] by any route above the Codoms creek." Transcript included.

Spencer Fullerton Baird compiles a "List of the Birds of the United States (from Aububon), prefixed to which is a List of the Birds found near Carlisle, Pennsylvania" The document contains the type of bird, time when first shot, and "when known."

Spencer F. Baird, a Professor of Natural Sciences at Dickinson, publishes "Catalogue of Birds Found in the Neighborhood of Carlisle, Cumberland County, PA" in the Literary Record and Journal of the Linnaean Association of Pennsylvania College (Vol. 1, No. 12) in October 1845. 1845.

Spencer F. Baird (Class of 1840), the Assistant Secretary of the Smithsonian Institution, publishes "General Directions for Collection and Preserving Objects of Natural History" in 1848. Baird, who is responsible for the Natural History Department, also includes an overview ("Special Desiderata...

Supreme Court Chief Justice Roger Brooke Taney writes Professor Joseph Henry, the first Smithsonian Secretary, to explain that he cannot meet with the Regents of the Smithsonian Institution. As the Supreme Court Justices are meeting to decide cases, Taney explains that "every one of us must...

Spencer Fullerton Baird (Class of 1840) writes to Osmond Tiffany, responding to the latter's request for documents about the Pacific Rail Road and the Mexican Boundary.

George Lawrence drafts six letters to Spencer Fullerton Baird, the Assistant Secretary of the Smithsonian Institution, that include a list of avian specimens from Costa Rica and Panama to be sent to Baird, as well as other specimens requested by the author. Transcripts included.

Assistant Secretary of the Smithsonian Institution Spencer Baird writes to George Lawrence regarding a description of a bird. As Lawrence's description "does not seem to differ much from [Thomas C.] Eyton," Baird recommends that Lawrence "send it to [Philip L.] Sclater for his opinion."