Lower Hall, walruses in center, circa 1883 

Geological Hall, mastodon and fossil bird in background circa 1887-1904 

Gallery, section 1, third floor, 1883 

Upper Hall, from American Museum of Natural History, Central Park (77th Street and Eighth Avenue) : photographic views of its buildings and exhibition halls, with a statement of its aims and purposes, 

Bird Hall, 2nd Floor, from American Museum of Natural History, Central Park (77th Street and Eighth Avenue) : photographic views of its buildings and exhibition halls, with a statement of its aims and 

Geological Hall circa 1900 

View of gallery floor, old building, looking south, Bird Hall 1883-1900 

Bird Hall, second floor in main building, looking south, circa 1883-1900 

Geological Hall 1910 

Geological Hall 1882-1904 

View of Bird Hall, with Haida Canoe, second floor, main building, Bird Hall circa 1883-1900 

Exhibit cases, Geology Hall circa 1900 

Bird Hall, Third Floor Gallery, Old Building, from the south 1883-1900 

Exhibit cases, Geology Hall, circa 1900 

Sponges and sea fans in exhibit case, Geological Floor 

Fossil Mammal Hall, circa 1900 

Model case for fossil specimens, Hall of Invertebrate Paleontology circa 1900 

Silurian exhibit, Geology Hall, circa 1920 

Bird Hall, second floor, from north 1883-1925 

Fossil Cephalopoda, Hall of Geology, 1937