23 



MONOGRAPHS in course of Publication — Continued. 



The Trilobites of the Mountain-Limestone, Devonian, and Silurian Formations, by Mr. J. W. 



Salter* 

 The Malacostracous Crustacea, by Professor Bell. 

 The Eocene Mollusca, by Mr. S. V. Wood. 

 The Belemnites, by Professor Phillips. 



The Fishes of the Old Red Sandstone, by Messrs. J. Powrie and E. Ray Lankester. 

 The Reptilia of the Kimmeridge Clay, by Professor Owen. 

 The Reptilia of the Liassic Formations, by Professor Owen. 



The Pleistocene Mammalia, by Messrs. Boyd Dawkins and W. A. Sanford. , 



The Cetacea of the Crag, by Professor Owen. 



* Unfinished through the death of the Author. 



MONOGRAPHS which are in course of Preparation if — 



The Flora of the Tertiary Formation, by Mr. W. S. Mitchell. 



The Cretaceous Foraminifera, by Messrs. T. Rupert Jones, W. K. Parker, and H. B. Brady. 



The Foraminifera of the Lias, by Mr. H. B. Brady. 



The Graptolites, by Professor Wyville Thomson. 



The Polyzoa of the Chalk Formation, by Mr. G. Busk. 



The Palaeozoic Polyzoa, by Dr. Duncan. 



The Crinoidea, by Professor Wyville Thomson. 



The Post-Tertiary Entomostraca, by the Rev. H. W. Crosskey and Messrs. G. S. Brady and 



D. Robertson. 

 The Wealden, Purbeck, and Jurassic Entomostraca, by Messrs. T. Rupert Jones and G. S. 



Brady. 

 The Bivalve Entomostraca of the Carboniferous Formations, by Messrs. T. Rupert Jones and 



J. W. Kirkby. 

 The Trigonise, by Dr. Lycett. 



The Post-Tertiary Mollusca, by Mr. J. Gwyn Jeffreys. 



The Cretaceous Mollusca (exclusive of the Brachiopoda), by the Rev. T. Wiltshire. 

 The Purbeck Mollusca, by Mr. R. Etheridge. 

 The Inferior Oolite Mollusca, by Mr. R. Etheridge. 

 The Rhsetic Mollusca, by Mr. R. Etheridge. 

 The Liassic Gasteropoda, by Mr. Ralph Tate. 

 The Ammonites of the Lias, by Dr. Wright. 



t Members having specimens which might assist the authors in preparing their respective 

 Monographs are requested to communicate in the first instance with the Honorary Secretary. 



