BOAT 



operated electrode (the anode -^x. electrofishing) and a 4 2-rn a— ^ corresponding numbers, 



percentages of the given output voltage ound -"^l^^'^^d vfdir he ToUage d Herences of the encompassing lines by 

 The voltage gradient at any one point can be estimated by dividing 'he J^^'^S; '^ ^^^ , if ,he output voltage was 



