CONTEXTS xi 



PAGE 



Manufacture 427 



Preparation and cost of raw material 427 



Excelsior machines 427 



Baling press 427 



Description of operation 430 



CHAPTER XXII. CORK 



General 43.3 



The cork oak 434 



Harvesting the bark 435 



Yield and value 437 



Manufacture 438 



Utilization of cork 440 



INDEX 445 



