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Clavis Agaricinorum ; an Analytical Key to the 



British Agaricini, with Characters of the Genera and Sub-genera. 

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SHELLS AND MOLLUSKS. 



Testacea Atlantica ; or, the Land and Freshwater 



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 Demy 8vo, 25s. 



Elements of Conchology ; an Introduction to 



the Natural History of Shells, and of the Animals which form 

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Conchologia Iconica ; or Figures and Descriptions 



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A detailed list of Monographs and Volumes may be had. 



Concliologia Indica; Illustrations of the Land and 



Freshwater Shells of British India. Edited by Sylvanus 

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The Edible Mollusks of Great Britain and Ireland, 



with the Modes of Cooking them. By M. S. Lovell. Crown 

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INSECTS. 



Insecta Britannica ; Vol. III., Diptera. By 



Feancis Walkee, F.L.S. 8vo, with 10 Plates, 25*. 



