2 



obtaining the whole Work for the sum of Eighteen Pounds 

 Fifteen Shillings less than those who do not make such advance. 

 The first Number, or Part, will be published as soon as one 

 hundred Subscribers shall either have paid Twenty Pounds or 

 signified their intention of patronizing the Work. 



The possession of the celebrated TANKERVILLE 

 COLLECTION, though but for a short time, will enable us 

 to secure drawings and descriptions of many Shells that could 

 not otherwise be easily obtained : this, in addition to our own 

 private Collections, and the immense number of Species contained 

 in the Collection, late the property of Mr. Geo. Humphrey, 

 and the access we have through their Iberality to the Collections 

 of many of our kind Friends, will put it in our power to render 

 this Work by far the most complete in its kind. 



The principal features of the Species Conchyliorum, 

 which we have the pleasure of announcing in present Prospectus 

 are summarily as follows : — 



I.— The Work to be elegantly printed on Royal Quarto, hot- 

 pressed Paper, and the Plates to be accurately engraved, 

 and coloured after Nature from good specimens. 



n,»^-The Descriptions to be given in Latin and English, 

 together with such observations as may occur and render 

 the Work generally interesting, in English. 



in.— Tlxe number of Species and Varieties to be described 

 and figured to be 5000, which wiU be contained in from 

 900 to 1000 Plates. 



IV.—The price for the 5000 Species and Varieties together to 

 be £60 to Subscribers who advance £20; 16s. to be paid 

 for each Number on delivery. 



v.— To Subscribers who do not advance £20, the price of 

 the whole Work will be 75 Guineas: .£1 lis. 6d. 

 to be paid for each Number on delivery. 



