ASTRONOMY NUMBER 



pftTOIJE-STODY SEtflEW 



\ Devoted to Elementary Science in the Schools 



OFFICIAL ORGAN 

 OF THE 



American 

 Nature- 

 Study 



So. 





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Eclipse of the Sun 



Photo by Verne Morton 



JANUARY, 



1921 



Vol. 17 No. 1 



Whole No. 140 



20c a copy 



$1.60 a year 



