360 



ZOOLOGY. 



[Sect XI. 



the layor is overspread with beetles they must be covered 

 with another layer of sand, and the packer must proceed 

 with layers of beetles and sand alternately, till the box 

 which should be water-tight, is quite fulL when it should 

 be screwed dow^n and pitched at the seams. Mr. Dc 



u'wm 



preserved all his dry specimens of insects, excepting the 

 lepidoptera, between layers of rag in pill-boxes, placing 

 at the bottom a bit of camphor, and they arrived in an 



F 



excellent state* 



B 



I 



MoLLUSCA (Catties, Squids, Snails {land and sea), Slvgs 

 {land and sea), Shell-Jish, Cowries, Limpets, and 

 Bivalves, as Mussels, Oysters, Sfc), 



" A superficial towing-net, another so constructed as to 

 be kept a fathom or two below the surface, and the deep- 

 sea trawl, are the principal agents for capturing these 

 animals. But when the tide is at the lowest, the collector 

 should wade among the rocks and pools near the shore, 

 and bcarch under overhanging ledges of rock as far as his 

 arms can reach. An iron rake, with long close-set teeth, 

 will be a useful implement on such occasions. He should 



grow 



a 



care to protect his hands with gloves, and his feet with 

 shoes arui stockings, against the sharp spines of echini, the 



weevers (sting-fishes), and the stings of 

 medusa (sea- nettles). In detaching chitons anApateUcB 

 (limpets), which are all to be sought for on rocky coasts, 



back 



uf 



u 



the surgeon's spatula* will prove a valuable assistant 



* A case knifej in experienced hands, is even a better instrument ; but 



great cure must be taken not to wound the ngamentous border of the 

 sheU ot the chiioiis, and not to injure the edges of the limpets. 



d 



pi 



