15. 14 



2.41 



.01 



15. 51 2 



2.65 2 



• OT 2 



15-40 



2.70 



.09 



16.1k 



2.10 



.11 



TABLE A-V 



Mass-Size and Activity-Size Distribution of Sand at Various 

 Stages of Study No. 5 (Percent "by weight or activity) 



Sample Stage 1+20-833 295-420 210-295 149-210 88-149 <8i 

 y y y U U H_ 



Original - 1 1.27 18.91 62.26 



After HC1 leach 

 {2.31% weight loss) 1.26 18.28 62.24 



Coated and fired 

 (0.29$ weight loss) 1.42 20.20 60.20 



Abrasion residue l.l8 20.74 59-12 



Abrasion residue 

 (activity) 3 (.66) (9.82) (46.40) (33.08) (9.63) (.48) 



1. Bear Creek No. 1, +5 sample. 



2. Percent of depleted sample. 



3. Numbers in parentheses refer to activity-size distributions. 



All others refer to mass-size distributions. 



TABLE A-V I 



Mass-Size Distributions Obtained by Sequentially Sieving Two 

 Bear Creek No. 1, +5 Samples (Percent by weight) 



Experiment 420-833 295-^20 210-295 149-210 88-1^9 <88 

 Number y y y V V H_ 



23.92 60.5^ 11.63 1.66 .01 



19.72 63.61 13.01 2.09 .01 



18.91 62.26 15.14 2.41 .01 



1. 



2.23 



2. 



1.60 



Original from 





Table A-V 



1.27 



A-ll 



