The document provides information about various architectural works and sites designed by or associated with Andrew Jackson Downing, including the Athenaeum of Philadelphia, Downing Estate in Newburgh, NY, Montgomery Place, Matthew Vassar's Springside in Poughkeepsie, and Newburgh's City Club (also known as Dr. Culbert House). It also mentions Downing's Journal: The Horticulturist and notes that Downing is interred at Cedar Hill Cemetery.