186 THE BRITISH ANGLER'S LEXICON. 



At night the movements are made by lights. Water keepers 

 should alter their appearance by a frequent change of the 

 clothes they usually wear, so that they may not be recog- 

 nised at a distance. A good preventive to poaching pools- 

 with nets is to place in the water concrete blocks, shaped 

 like a pear, the small end up. As the surface of these are 

 smooth, they afford no means of hauling them out by 

 grappling with ropes. Very smooth boulders are also good, 

 but they are not so easily placed in position as the concrete 

 blocks, which can be made directly over the spot on a raft, 

 and dropped down to the position desired. 



Pocket or Portmanteau Rods. These rods are 



made so that they can be carried in a large pocket or stowed 

 away in a portmanteau, and being composed of a number of 

 short joints, they are very useful in travelling, as they take 

 up little space. 



Pollen, The (Corregonus pollan), a fish somewhat 

 resembling the salmonidse, but having a prolonged snout 

 like the herring. They are called the fresh water herring, 

 being about the same size, and are only to be found in 

 Lough Neagh, in Ireland, although some writers affirm that, 

 they are identical with the gwiniad of Wales, and the 

 powan of Loch Lomond. They are a delicate-flavoured 

 fish, and when fresh caught are highly esteemed as food. 

 But they won't keep for more than a day, and decompose 

 very soon. From an angler's point of view they are use- 

 less, being only caught by nets. They spawn in December 

 and January. 



Prawn, The (Pal&mon senatus) is a crustacean com- 

 mon on the British coasts ; not so abundant as the shrimp, 

 and, unlike it, is found in the vicinity of rocks at a little 

 distance from the shore. It is highly esteemed for the 



