206 ANIMAL LIFE AND HUMAN PEOGEESS 



On that occasion over 240 tons of the undersized mussels had 

 been transplanted in six days' work. It was found that on the 

 average the transplanting increased the bulk of the mussels 

 about two-and-a-half times, and the increase in length to the 

 original shell was in some cases well over an inch. 



These experiments, on the industrial scale, were not .carried 

 further. The Lancashire Committee only desired to show 

 what could be done and how to do it, and had no intention of 

 running a commercial concern ; but the results are very sug- 

 gestive and encouraging as to what might be done in the 

 further cultivation of our barren shores. 



There are many other Unes of scientific investigation and of 

 practical exploitation of the sea-fisheries, the details of which 

 cannot be given here. I shall be content if I have shown that 

 something has already been done by zoological science for this 

 great national industry, that much more still remains to be 

 done both in the laboratory and in the field, and that it is all 

 well worth doing with the object of increasing and improving 

 our supply of food from the sea. 



