[ ^10 ] 



An Examination of the Present State of the Grimsby 

 Trawl Fishery, with especial reference to the 

 Destruction of Immature Fish. ■ Revision of Tables. 



By 

 Ernest W. L. Holt. 



About a year subsecjueiit to the appearance of my paper ou the Grimsby 

 Trawl fishery my attention was directed to certain arithmetical errors 

 in the table on pp. 40G and 407 (pp. 70 and 71 of the lieprint). These 

 errors are in truth, considerable, though fortunately not of a nature to 

 allect the arguments brought forward in the text, as will appear to such 

 of my readers as may be at pains to compare the revised edition with 

 the original. 



Although I have no intention of seeking to evade the responsibility 

 for the figures published under my name, I may ask, nevertheless, to be 

 allowed to advert briefly to the circumstances under which they went to 

 press. At the time my paj)er was in preparation I was suffering from 

 an illness that ultimately compelled me, with much regret, to sever my 

 connection with the Association ; and when it seemed advisable to expand 

 my original statistics of " boxes " into columns of other quantities, I 

 found my eyesight unequal to the cyphering thereby entailed. I was 

 therefore obliged to confide the calculations, in great part, to other 

 hands, with results sufficiently disastrous to my own reputation for 

 accuracy. 



The revision of the tables has brought to light two errors, which are 

 not those of arithmetic, and for which the responsibility is entirely my 

 own. In the entries for June, July, and August, 1892, it has been 

 explained that 1000 cwt. was subtracted from the Board of Trade 

 returns, as representing approximately the quantity of fish landed from 

 Iceland during the said months. My intention, though not clearly 

 explained in the text, was to subtract the amount from the aggregate ; 

 but in the tables it was inadvertently taken from each separate month. 



* Journ. Mar. Biol. Assoc, vol. iii. No. 5, Special Number, pp. 339-448. Reprinted 

 under the above title. 1895. 



