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in the future appears immediately from the consideration of the many unanswered questions 

 which still confront us. In judging of the work done, it should be remembered how great 

 the tasks were we have taken in hand, and even if the work carried on has been very great 

 in its innumerable details the fact must be clear to every expert, that the solution of the 

 great problems requires an even larger material than that which has been hitherto at 

 our disposal. The labours of Committee A represented only a part of the sphere of ac- 

 tivity of the international organisation, which has endeavoured to procure a general survey 

 of the whole region investigated internationally for orientation purposes. It will be pos- 

 sible in the future, on the basis of this survey, to solve more definitely limited problems. 



