months, that the worst attacks of the whelks take place; but tlie ainouut of the 

 damage done daily by the whelks depends greatly on the way fishermen 

 deal with their nets. If they let the nets stand out for 24 hours, most of the 

 fishes attached in it ara often devoured, and if a storm rises which prevents the 

 nets being taken up just one single day, so that they remaiu out 48 hours, practi- 

 cally everything is destroyed. If, on the other haud, the fishermen attend to the 



Fig. 4. 



