ON COLLECTING SHELLS. 



427 



Fig. 227. A Trawl-net. A. Side view; t'. I'lan ; B. Net in operation. 



Kettle-nets. — On the flat, sandy coast of Kent and Sussex, the mackerel- 

 fishery is pursued by setting up stakes ]0 or 15 feet high, at distances of 10 

 feet apart, in lines running outwards from the shore at high-water, to low- 

 water neap tides, where they are turned in the direction of the tide. To 

 these stakes, nets are attached and leaded, which remain as long as the fish 

 are on the coast. Cuttle-tish are frequently taken in these nets. 



Deep-sea FisJteri/. — In North Britain an extensive ground-fishery is con- 

 ducted by means of long lines, — often a mile in length — with hooks and baits 

 every few yards. These lines are laid out at night, near the coast, and taken 

 up the next morning. When used out at sea, the boats lay by for a few 

 hours, and then take up the lines. The carnivorous whelks adhere to the 

 baits (which have not been seized by fishes), and sometimes a bushel ol 

 them are taken in this way from a single line. Uhynchonella psittacea, 

 Panopaa Norvec/lca, Vehitince, and some of the scarce Fusi, have been 

 obtained from these lines, the bivalves having been entangled accidentally by 

 the hooks. 



For trapping wheUcs on rochj ground a net may be made, such as is used 

 for crabs and lobsters, by attaching a loose bag to an iron ring of a yard 

 across. This is fastened to a rope by three equal strings, baited with dead 

 fish, and let down from a vessel at anchor, or stiU better from a buoy. It is 

 put down over-night, and hauled up gently in the morning. 



Mr. D'Urban informs us that Natica Alderi and monilifera are fre- 



U 



