4-02 



THE GUIDE TO NATURE 



Ml^. AND MRS. ANDREW CARNEGIE 



fPhotograph bv Paul Thompson"). 

 Here is a thoroughly efficient and successful business man who places an astronomical observatory 

 only second in the list of "the best practical uses to which wealth may be put.'' 



oolle.g'es, or even with high schools. Your 

 hbraries stand alone as the great educa- 

 tional factors in great communities. Es- 

 tablish observatories on exactly the same 

 principles and you will achieve a similar 

 success- 



I note with much pleasure your asser- 

 tion that your interest in libraries was 

 awakened in you, because, as a boy in 



Pittsburgh, you found it so difficult to 

 gain access to books. 



Although you consider the establishing 

 of popular observatories as more impor- 

 tant than that of libraries, you tell us that 

 you have devoted your efforts to the 

 libraries because of your own personal 

 experience of the need. Please make a 

 few inquiries to ascertain the astronomical 



