PHILIPPINE RAW MATERIALS FOR GLASS MAKING 
By T. Dar Juan and V. Elicano 
{From the Chemical Laboratory and the Division of Mines, Bureau of 
Science, Manila) 
THREE TEXT FIGURES 
Some years ago experiments were made by private concerns 
in the manufacture of glass from materials found in Pampanga 
and Tarlac, but the attempts were fruitless. At present there 
is a bottle factory at Santa Ana, Manila, that operates entirely 
with broken glass, or cullet; however, the operation of this 
factory is very intermittent, and its production does not meet 
the demand. 
The imports of glass bottles and other ordinary glassware into 
the Philippine Islands have shown an almost constant increase 
since 1915, and have now reached a point where the establish- 
ment locally of a modern glass factory would appear to be justi- 
fied. Information obtained by the Bureau of Science indicates 
that 15,000,000 split and pint bottles are used annually in the 
Philippines, 10,000,000 of which are returned empty to the soda- 
water and beer factories, leaving a probable market for not 
less than 5,000,000 bottles per year. Table I gives the value of 
Philippine imports from Japan of glass bottles, drinking glasses, 
and lamp chimneys for the last four years. 
Table I. — Philippine imports from Japan. 
[Numbers give values in pesos.] 
1918 
1917 
1916 
1915 
New empty bottles _ 
440, 090 
193,093 
158, 419 
129, 197 
95, 057 
142, 076 
60, 268 
62, 869 
Lamp chimneys 
37,210 
16, 445 
20, 337 
17, 023 
Total 
572, 357 
351, 614 
239, 024 
199, 079 
Prices of bottles and other ordinary glassware have increased 
considerably during the past two years, and at present it is very 
difficult to secure them reasonably. In the Philippine Islands 
there are 12 soda-water factories (in Manila), 2 breweries, 440 
465 
