THE PHYSICAL PROPERTIES OF CLAY. 103 



No. of 



cone. 



.01 



02 i°-3 K -°] 



I 0.7 CaO J 



I 0.7 CaO ) 



fo.3 K 2 Oj 

 (0.7 CaO) 



0.3 K 2 Oj 

 0.7 CaO) 



0.3 KX>? 

 0.7 CaO J 



0.3 K.O) 

 0.7 CaO) 



0.3 K,0? 

 0.7 CaO j 



0.3 K.O? 

 0.7 CaO) 



0.3 K.O? 

 0.7 CaO) 



0.3 K 2 Oj 

 0.7 CaO) 



0.3 K.O) 

 0.7 CaO) 



10 



13 

 14 

 15 

 16 



17 

 18 



19 

 20 



} 



0.3 K 2 

 0.7 CaO 



0.3 K 2 Oj 

 0.7 CaO) 



0.3 KsO? 

 0.7 CaO ) 



3 K=0} 

 7 CaO ) 



(0.3 K 2 



} 



0.7 CaO 



0.3 K 2 0? 

 0.7 CaO) 



0.3 K 2 Oj 

 ,0.7 CaO) 



fo.3 K 2 Oj 

 (0.7 CaO) 



U3 K 2 0| 

 (0.7 CaO) 



fo.3 K 2 Oj 

 1 0.7 CaO ) 



fo-3 K 2 0) 

 '/0.7 CaO} 



{0.3 K 2 0} 

 ) 0.7 CaO J 



0.2 

 0.3 

 0.2 

 0.3 

 0.2 

 0.3 

 0.1 

 0.4 



0.05 



045 



0.5 

 0.5 

 0.6 

 0.7 

 0.8 

 0.9 

 1.0 



1-4 



1.6 

 1.8 

 2.1 



2.4 

 2.7 



3-1 

 3-5 

 3-9 

 4-4 



Composition. 



Fe 2 O s j3-9oSi0 2 ) 

 A1 2 3 lo.ioB.Oa) 



—Fusing 

 °F. 



2,030 



Fe.Os |3-95Si0 2 ) ~ 



A1 2 3 lo.05B.O3) 2 ' 0bb 



Fe 2 3 1 a-r\ 



A1 2 3 / 4Sl ° 2 2 ' 102 



Ha l 4Sia 2 > 138 



Alio! )4Si0 2 2,174 



Al 2 0s4Si0 2 2,210 



Al 2 3 5Si0 2 2,246 



Al 2 3 6Si0 2 2.282 



Al 2 3 7Si0 2 2.318 



Al 2 3 8Si0 2 2.354 



Al 2 3 9Si0 2 2,390 



Al 2 3 ioSi0 2 2,426 



Al 2 3 i2Si0 2 2,462 



Al 2 3 i4Si0 2 2,498 



Al 2 3 i6Si0 2 2,534 



Al 2 3 i8Si0 2 2,570 



Al.O^iSiOo 2,606 



Al 2 0324Si0 2 2,642 



Al 2 0327Si0 2 2,678 



AL0 3 3iSi0 2 2,714 



Al 2 0s35Si0 2 2,750 



Al 2 3 39Si0 2 2,786 



Al 2 0344Si0 2 2,822 



point.—*, 

 °C. 



1,110 

 1,130 

 1,150 

 1,170 

 1,190 

 1,210 

 1,230 

 1,250 

 1,270 

 1,290 

 i,3io 

 i,330 

 i,35o 

 i,37o 

 i,390 

 1,410 

 I.430 

 i,45o 

 1,470 

 1,490 

 1,510 

 i,S30 

 1,550 



