3M 
ing day — the experiments being so planned as to keep the men 
busy during that time. 
The two important points on which the success of the rubber 
industry in Hawaii turns are first, whether the trees yield latex 
in commercial quantities, and second, whether the latex can be 
collected and prepared for market at a profit. Until these ques- 
tions are definitely answered the rubber industry must remain in 
CEARA RUBBER TREE AT OLA A MILL, PUNA, HAWAII. 
