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made these resources known, not only to the people of the 

 State, but to others outside, who would desire to make use 

 of them in the investment of capital. 



Foreseeing that his State must be the center of a dense 

 population, occupying in this country somewhat the same 

 position that Belgium does in Europe; foreseeing that it 

 would require not only pure air, but pure water to main- 

 tain a vast population such as must grow up within its 

 borders, he carefully measured the sources of water supply 

 which must lie at the foundation of all development, 

 industrial and social, and he has pointed out that there is 

 no region north of the Potomac river, that is to say be- 

 tween Washington and Maine, in which there is so large a 

 supply of pure water as in the region which is occupied 

 by the northerly portion of the State between New Bruns- 

 wick and the Hudson river. The watershed of that region 

 is twice as large as the watershed upon which New York 

 depends for its supply — the Croton watershed. 



In the course of one or two centuries the density of 

 population will depend entirely upon the ability to get 

 water to drink, and when that time comes the great growth 

 of that State must be in the region which can be supplied 

 from the Passaic watershed. All this Doctor Cook fore- 

 saw. He worked for this generation, it is true, but it was 

 less for us than for those who are to come after us, and I 

 predict that in the future the man whose name will be 

 written down upon the page of history as the benefactor 

 of his State, and of his time, will be George H. Cook. 

 The actual achievements of the survey from a scientific 

 point of view are not striking. Scientific problems have 

 been investigated, scientific laws have been proven, and 

 many prejudices have been removed. The old ideas about 

 the igneous origin of the metalliferous formation, have been 

 destroyed, but even if Dr. Cook had not been in the sur- 



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