Bottles, Bottles Everywhere, But Not A 



Photos Press Illus. mtv. 



The basis of bottle glass is a siliceous sand, 

 limestone and either sulphate or carbonate 

 of soda. The photograph above shows the 

 new mixture together with broken bottles 

 being thrown into the furnace. Here it 

 melts and forms a thick syrupy liquid which 

 is later molded into the form of bottles 



The photograph below shows another kind 

 of raw material used for bottle-making — 

 "cullet." It is a by-product of the glass 

 furnaces and it is melted with the other 

 raw materials. A combination of "cullet," 

 sand, soda ash and lime gives a white 

 glass with a very slight greenish tone 



aJIP 



At left: Placing the bottles in an 

 oven for gradual cooling. After they 

 have been formed in the mold the 

 bottles cool quickly on the outside 

 while they remain at a high temperature 

 within. To produce a clear, strong 

 bottle a twelve-hour cooling is necessary 



