APPENDIX 



The tables in this appendix contain 

 the experimental design matrix, the numbers 

 of fish and percentages recovered in the 

 narrow channel, and the arc sine transforma- 

 tion to make means and variance independent. 

 Tables of variance and average number re- 

 covered downstream are given also as they 

 serve as a basis for a graphic presentation 

 of their relation. 



The experiment was a test of the rela- 

 tion of field polarity to the guiding 

 effectiveness of a single-row electrode array 

 and a means of measuring the variability of 

 the test fish. 



