PERCENTAGE COMPOSITION OF GLASS OBTAINED. 
XIV, 6 Dar Juan and Elicano: Philippine Glass Materials 473 
o CO o> T-i 
o o 00 to rf 
to t- tH C5 
O IC O (M o 
o CO GO 
00 o CO 
to t- oo o to 
"A 
o + 
^ O 
^ ^ "In 
^ O ^ < 
C « 
43 Q 
s o 
M C 3 
^ ^ m 
9 
