The Monograph on ' The Reptilia of the Cretaceous Formations ' was published as follows 



Part I, pages 1—118 ; plates I— XXXVII, with VIIa and IXa, June, 1851. 

 Supplement I, pages 1 — 19 ; plates I — IV, November, 1859. 

 Supplement II, pages 27—30; plate VII, March, 1861. 

 Supplement III, pages 1 — 25; plates I — VI, March, 1861. 

 Supplement IV, pages 1 — 18; plates I — IX, August, 1864. 



