— 184 — 



Form of density: Dense. 

 I. Quality. II. Quality. 



9.3150 , ,, „ 9.6898 



liN=2.7931 + - 



j.e. N=62I.0e 



21.4487 

 t 



33 j 1312 



35 ; 1340 



37 1286 



40 ' 1222 



50 I 1131 



60 I 946 



75 j 819' 



100 \ 760 i 794 I - 4.5 



m=-j:5.6% 



r =±iJ% 

 Diff.>r 12 in number 

 Diflf.<r 8 in number 



Cal. 



3189 

 2879 

 2631 

 2428 

 2260 

 2118 

 1895 

 1727 

 1658 

 1596 

 1506 

 1504 

 1407 

 1338 

 1306 

 1252 

 1206 

 1148 

 1015 

 935 

 861 



Diflf. 



% 



- .9 



- 3.9 



- 4.5 

 + 6.1 



- 9.7 



- 7.3 



- 4.2 



- 4.2 

 + 1.5 



- 2.3 

 + 0.4 

 + 3.1 

 + 4.7 



- 2.9 

 + 0.5 

 + 6.6 

 + 6.2 

 + 6.1 

 + 10.3 

 + 1.2 



- 5.1 



%N= 3.0010 + 



+ 

 J.e.N= 1002.02 



t 



22.3313 



t 



Diff. 

 % 



- 0.9 

 + 4.1 



- 0.7 



- 3.2 



- 0.9 

 + 0.9 

 + 0.7 



m=±2.'D% 



r =-±\.(i% 

 Diff.>r 2 in number 

 Diff.<r 5 in number 



III. Quality. 



14.0139 



Zo(/N= 2.966 + 



+ 

 i.e. N = 924.9e 



t 

 32.2687 



m=±lA% 



r = ±A.9% 



Diff.>r 2 in number 

 Diff.<r 3 in number 



