Collection of Nine Art Reference Books; this lot includes nine art reference books, "The American Impressionists" by Hoopes; "Art in America" by Art in America Co.(1960); "Winslow Homer" by Gardner; "Art in America" by Art in America Co. (1961); Two copies of "The Beauty of American - In Great American Art"; "Art in America" by Art in America Co. (1961); "Art for the Nation" by National Gallery of Art; "Treasures From the National Gallery of Art" edited by Cairns and Walker Collection of Nine Art Reference Books; this lot includes nine art reference books, "The American Impressionists" by Hoopes; "Art in America" by Art in America Co.(1960); "Winslow Homer" by Gardner; "Art in America" by Art in America Co. (1961); Two copies of "The Beauty of American - In Great American Art"; "Art in America" by Art in America Co. (1961); "Art for the Nation" by National Gallery of Art; "Treasures From the National Gallery of Art" edited by Cairns and Walker