nets both morning and evening, as is now often the case, for instance at Thisted 

 in the summer, not uearl}' so muoh harm is done, and if they use the method of 

 beating the water in the daytime and thus have the nets out for only a short 

 time, almost no harm is done. But this mode of fishing requires the fishermen 

 to remain nninterruptedly by tlieir nets — for which tolerably fine weather is ne- 

 cessary, so that it is not easily carried out with sufficient profit. We may reckon, 

 however, that all in all the attacks of whelks lead to a loss of 7.?rd of the year's 

 catch in the central parts of the Limfjord; consequently, the damage done is 

 very considerable, and on accouut of this I have made great eii'orts to find 



Fig. S. 



a suitable use for these whelks, which might perhaps make the fishing of them 

 pay itself and thus be carried ou without special support, for example, from the State. 

 The whelks, the large (Buccinum), are ackuowledged to be an excellent 

 bait for eels in summer and for cod in winter, and during my investigations this 

 year a part also has beeu sold to fishermen in Thisted, for use in the eel-fishery; 

 but the local use is too small, when many whelks are fished. Experiments have 

 also been made with the salting of the whelks, taken out of their shells, but 

 on the west coast they were refused owing to the salt making them too hard. I 

 have sent whelks slightly salted to Norway, where salted mussels (Mijlilus modiolus) 

 and cuttle-fish are kuown to be much used for bait; but this experiment did not 

 succeed either; it appears that the whelks require so much salt to keep, that it 

 makes them too hard. Next I tried solutions of formaline, and though experi- 

 mental fishing for cod gave much fewer fislies per 100 hooks with sucli bait in 

 the Limfjord than with fresh whelks, it is possible, that these prepared in forma- 

 line might be used on the west coast, where the fishermen are usually obliged to 

 use salted, not fresh bait. If numbers of whelks could be fished during the 



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