MEMOIRS OF THE PEABODY MUSEUM OF NATURAL HISTORY 



YALE UNIVERSITY 



Volume I. Odontornithes: A Monograph on the Extinct Toothed Birds of North 

 America. By Othniel Charles Marsh. Pp. i-ix, 1-201, pis. 1-34, 

 text figs. 1-40. 1880. To be obtained from the Peabody 

 Museum. Price $3. 



Volume II. Parti. Brachiospongidse : A Memoir on a Group of Silurian Sponges. 

 By Charles Emerson Beecher. Pp. 1-28, pis. 1-6, text figs. 1-4. 

 1889. To be obtained from the Peabody Museum. Price $1. 



No more published. 



Volume III. Part 1. American Mesozoic Mammalia. By George Gaylord Simp- 

 son. Pp. i-xvi, 1-171, pis. 1-32, text figs. 1-62. 1929. To be 

 obtained from the Yale University Press, New Haven, Conn. 

 Price $5. 



Part 2. A Remarkable Ground Sloth. By Richard Swann Lull. 

 Pp. i-x, 1-20, pis. 1-9, text figs. 1-3. 1929. To be obtained 

 from the Yale University Press, New Haven, Conn. Price $1. 



Part 3. A Revision of the Ceratopsia or Horned Dinosaurs. By 

 Richard Swann Lull. In preparation. 



Part 4. The Merycoidodontids, an Extinct Group of Ruminant 

 Mammals. By Malcolm Rutherford Thorpe. In preparation. 



Volume IV. Part 1. Brachiopod Genera of the Suborders Orthoidea and Pentam- 

 eroidea. By Charles Schuchert and G. Arthur Cooper. Pp. 

 i-xii, 1-270, pis. A and 1-29, text figs. 1-36. 1932. To be 

 obtained from the Peabody Museum. Price $7 (bound in cloth), 

 $6 (bound in paper). 



