Aw be reps pov year or 50-2 per yoar fron the external stuff -599-2 from the internal, There is a protty good dese ywhon you consider the fish lived to be about two yoars old. I do not think this is an exhorbitant fiscure, but if we get to the point where we cut it in tvo, we have 759 to a thousand hours over 2 life svan, waich is a pretty sood cose, and I think that is because the fish, to grow more slowly -- I think it is whet shortened their life snan and I am not at all sure but what it is wnat caused the white crappie and the red horse to disappaar from tha population. There is one other thing I would like to say kafore Ioquit. If all of you have copies of this, I vould like to have you open to page 33, because bere ve have this picture of the seasonal accumulation of radioactive materials in the fish, That is a story protty much in itselz in that when we first started out in the fall of 1950, we found thet the fish were carrying a reasonable anount of radioactivity in the tissues. The following suzmmer, they had doubled or tripled and immediately we thought here was a thermal enimal and it vould change its metabolic rate as the temperature of the environment chanses, so let us ses iz he dees not have a seasonal variation in the accumulation of radiation materials. We cut up three black cravpies and three biucgills each week from late in Ausust of 1951 until early in“the spring of 1953. I do rot renember what the dates weve, but it was sometime in February or