My apology for offering this oft-repeated tale to your readers is found in the fact that the basis of all true knowledge lies in observation and experience, and the further fact that the general practitioner, overworked, worried with waiting and watching the eventuation of a certain case, allows his mind to drift into a groove from which it is sometimes suddenly jerked by the rough jolt of death. And the further fact that the thinking mind, delicate as a galvanometer, takes cognizance of all externals calculated to make an impression upon it.
On March 16 I was asked by the father of the child, the history of whose case I am about to relate, to meet my friend Dr. F. Greenwell, of Huntertown. I found a male child 11 months old, pale but well nourished, with a slight swelling on right side of upper part of neck in front of