THE FOLLOWING WORKS, 



BY CAPTAIN THOMAS BROWN, 



Are in the course of Publication. 



ILLUSTEATIONS OF THE CONCHOLOai OF GEEIT 

 BKITAIN AND.IEELAND. 



Second Edition, with cmisiderahle Additions. 



To be completed in Sixteen Numbers, royal 4to. containing 

 Four coloured Plates, price 3s. each — in all Sixty -two Plates, 

 with complete descriptions, localities, &c. of all the species dis- 

 covered up to the present time, including marine, land, and fresh 

 water, together with a representation of the animals of nearly the 

 whole genera. The Engravings of this Work are nearly all 

 executed by Mr W. H. Lizars of Edinburgh. 



Fourteen Numbers have already appeared, and the work 

 will be speedily completed. 



II. 



ILLUSTEATIONS OF THE FOSSIL CONCHOLOGY OF 

 GREAT BEITAIN AND IRELAND. 



To be completed in Twenty-five Numbers, royal 4to. contain- 

 ing 4 coloured plates, price three shillings, or two shillings, plain ; 

 — in all 100 plates, with complete descriptions, localities, and 

 geological positions of all the species. 



The Engravings of this Work are principally engraved, in the 

 first style of art, by Lizars, Aikman, and other celebrated 

 Engravers of Edinburgh. 



Twenty-two Numbers have appeared, and the work will be 

 speedily completed. 



N.B. The above u'ill be considerably advanced in price on 

 the completion of the Works. 



