R.P. & C. Williams (Firm)

• A general circular to all persons of good character, who wish to emigrate to the Oregon Territory, embracing some account of the character and advantages of the country
• Catalogue of books for sale by R.P. & C. Williams
• Catalogue of medical, botanical, and chemical books
• Catalogue of medical, botanical, and chemical books for sale by R.P. & C. Williams, Cornhill-Square, Boston, July, 1819