66 A HISTORY OF NATIONAL TUBERCULOSIS ASSOCIATION 



A TABLE SHOWING COMPARATIVE RESULTS OF THE CHRISTMAS 



SEAL SALE, 1919 AND 1920 



Continued 



If one were to recite the various influences and factors that 

 have contributed most to the success of the campaign against 

 tuberculosis in the United States, he could not help but place at 

 the head of any such list the Tuberculosis Christmas Seal. 



