3/0 CONCLUDING REMARKS. 



Shells may be kept in various ways. Most collectors 

 place them in small open cases made of common white 

 card. But a better method, I think, is to affix them to 

 pieces of thick pasteboard, covered with paper of some 

 light tint, and cut uniformly of the breadth of three 

 inches, the length varying from a quarter of an inch to 

 several inches. They are fastened with a little thick 

 paste, made of gum, brown sugar, water, and flour. 

 Very minute or very delicate shells may be kept in small 

 glass-tubes. This latter method I cannot recommend 

 too strongly, it being greatly preferable to any other that 

 I have seen used. 



The animals can be properly preserved only in spirits. 

 Although seldom seen in collections, they are much more 

 interesting to the zoologist than shells. 



I need scarcely say that my collection, including the 

 specimens described in this work, will always be acces- 

 sible to any individual who is desirous of inspecting it. 

 Nor need I refrain from intimating that specimens of 

 any species not hitherto found by me, would prove very 

 acceptable ; and that it will afford me pleasure to be 

 permitted to assist beginners by naming the objects which 

 they may find, or by supplying them with duplicates. 



Finally, if I have omitted the name of any individual 

 from whom I have received assistance, it has been done 

 unwittingly. My best thanks are due to Mr. Shier, who 

 has recently allowed me to inspect a small collection of 

 shells made by two of his pupils, in which, however, I 

 have found nothing new to me. Nor ought I to forget 

 the Footdee fishermen, whom I have always found most 

 obliging. It is pleasant to meet anywhere with unpur- 

 chased civility, and to know that there are men whose 

 benevolence prompts them to lend their aid to the prying 

 naturalist. 



I). CHALMERS AND CO. I'RINTERS, ABERDEEN. 



