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others were greatly modified, both in severity and number. One day, after 
the patient had been with me for some time, she told me that I was the 
eighteenth physician she had consulted. This individual could write a book 
on her experiences among doctors, and it might make painful yet beneficial 
reading to many who prescribe purely on a statement of symptoms. 
BIOGRAPHY B. Next in order would come a history, a biography, 
in the making, of a bright boy of fourteen years, but for certain reasons 
it was thought best not to put this case in the form of a chart. This boy 
reacts to his environment, but the chronic illhealth under certain conditions 
promptly subsides under other conditions. At the International Congress 
on Tuberculosis, at Washington, two months ago, Dr. Koch made a state- 
ment which I have repeatedly verified. He said it was very important to 
teach school children the important facts connected with tuberculosis, 
that they will learn readily and remember, whereas the old learn with 
difficulty and forget readily. I have frequently met elderly people whom 
I attempted to instruct, but after a time I would ask myself, What is the 
use? One is apt, on the other hand, to take unusual pains in instructing 
the young and intelligent, who are both willing and capable, and it will 
be interesting to read the biography of an individual who keeps a daily 
record of what he does and where he is, and of the conditions relating to 
health and illhealth. 
The question at times arises: Should an individual in chronic ill- 
health be asked to keep a daily record of events and of symptoms? I 
have had persons tell me they had so many symptoms that it would be 
impossible to keep track of them—yet in a short time there would be only 
a few to record, if they heeded rational advice. When the sick begin to 
realize that there is a relationship between symptom and cause, they no 
longer lie awake at night ‘wondering what it all means.’ 
One can readily understand why the individual brought up in the 
country under good air conditions should suffer on removing to the crowded 
city, and why the individual who is chronically ill in the crowded city 
may quickly regain health on going to the country, or by merely exchanging 
a dirty city for a clean one. We can also see how a study of biography in 
the light of air influences, of coniotics, so to speak, may be both interesting 
and profitable. 
BIOGRAPHY C. The influence of environment crops out in several 
Ways in this case, a man of 57. His father and mother were Irish; he 
was picked up as a waif in New York City when a small child, and, with 
