324 THE WONDERFUL CENTURY. 



have discussed, their Report is founded upon the opinions and 

 beliefs of the medical and official upholders of vaccination ; while 

 " the great masses of national experience," embodied in statistics of 

 mortality from various groups of diseases, as well as the well-known 

 facts of the sanitary history of London during the critical half- 

 century 1775-1825, are either neglected, misunderstood, or altogether 

 overlooked. 



