98 EAMBLES IN SEARCH OF SHELLS. 



better still, in glass-topped card-board boxes. We 

 much prefer the last-named method for many reasons. 

 Being thus protected from dust, they retain their 

 natural appearance better ; nearly allied species, or 

 specimens of the same species from different locali- 

 ties, may be distinguished without risk of their 

 getting mixed, and the bottom of each box serves as 

 a tablet whereon to pencil the collector's notes. 



The boxes may be arranged systematically, or in 

 any way most convenient to the collector. For 

 the benefit of those who may adopt the former and 

 more desirable method, we subjoin a systematic list 

 of all the British Land and Freshwater Mollusca, 

 placing opposite to each of the species referred to 

 in this book, the number of the page whereon it is 

 mentioned. 



In conclusion, we shall add a catalogue of such 

 works or published articles as we have met with 

 which contain notices of the land and freshwater 

 shells of particular districts. Such publications are 

 always of interest to local collectors ; and, as indi- 

 cating the source of much information on the sub- 

 ject of our native mollusca, we believe that a list of 

 them will be useful to conchologists. 



