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CHARLES S. YENTSCH 

 that Mr. Benson described in such glowing terras yesterday. 

 My connection here is that I was the biologist involved 

 with the controversial work. 



The question is why was the old-fashioned 

 light and dark oxygen bottle method used. I am trying to 

 recall the logic that we went through three or four years 

 ago when these decisions were made. As I recall it was a 

 composite of logistics in that time and budgetary restraint 

 did not permit a tooling up for radioactive techniques. 

 There also was at that time some question of the disposal 

 situation for us because of our position in pollution 

 control. This was a consideration. 



But I think the primary one was the feeling 

 that as long as the same technique was used in all stations, 

 primitive or not, it was assumed that the errors intrinsic 

 to the method would be the same throughout the procedures 

 and, such would equalize. We were here not after a study 

 of the environment, per se , but we were concerned with a 

 study determination whether or not differences existed in 

 the various areas studied. I think in this respect the 

 methodology is satisfactory. 



MR. YENTSCH: Well, I disagree, but it is 

 academic . 



CHAIRMAN STEIN: Right. All right. (LaughteJ) 



