THE SKIN AND THE KIDNEYS 



189 



FIG. 117. The First Vaccination. 



This picture is based upon a photograph of a painting exhibited many 

 years ago in the Paris Salon. It represents the crowning experiment of 

 Dr. Edward Jenner, a famous English physician and the discoverer of vac- 

 cination. The experiment was performed on a boy whom Jenner inocu- 

 lated with matter taken from the hand of a milkmaid who had been directly 

 infected by the cow. This was on the I4th of May, 1796, more than a 

 century ago. 



The picture is used by the kind permission of William Wood & Co., publishers. 



