58 
years under an unfavorable environment, structural changes may have 
been produced—we need only think of inflammatory processes followed by 
the formation of scar tissue—and that the outlook for a long life is not 
as favorable as in the case of a young person who gets out in time and 
before many organic changes have occurred or much scar tissue formed. 
In this case, it is not so much a matter of living a long life as it is of the 
subsidence of chronic illhealth and the ability to do a ‘fair day’s work,’ 
to make a living instead of being dependent on charity. 
It will be noticed that this biography is in several sections: 
1. An outline of his life, by years, in the form of a chart. 
2. A detailed statement up to the time he came to me, in loose sheets. 
3. <A statement of his observations since he has been with me. It 
will be observed that all are autobiographic—that is, written by the in- 
dividual; they were given me in the belief that his experience might be 
of benefit to others.* 
4. My own observations briefly summarized and charted, with sphyg- 
mograms here and there showing circulatory conditions. In the light of 
other cases, one can predict that this individual will, in all probability, 
ultimately die from heart and renal trouble. In a general way, one can 
divide men into two groups, high pressure and low pressure; each group 
has certain symptoms. 
BIOGRAPHY D. It is only occasionally that one is able to get a 
complete life-history, that is, from beginning to end. I shall show one 
of this kind. The long sheet gives an outline of incidents, arranged by 
years (of factors which the individual, more or less conversant with the 
subject of dust infection, considered of sufficient importance to be noted). 
The details that I asked for concerning certain factors, incidences and oc- 
currences, are given in these notes (shown). This individual was with 
me for only a short time, barely long enough to study her history and 
condition. She died some time later after having been under observation 
of two non-resident physicians. The influence of environment crops out 
all through this history, or strictly speaking, biography. The influence 
of life in the large city or in the country can be clearly traced. One 
environmental influence may be especially mentioned: This individual 
went to Korea as a medical missionary and there contracted a tropical 
disease from which she ultimately perished. One can readily see that had 
1The number of individuals who will allow the history of their lives to be used, as here presented, is 
rather limited—it takes the “missionary spirit’’ to do that. 
