Six years ago one of us (Peters) began the study of blood-pressure in tuberculous individuals living under sanatorium conditions at an elevation of 6,000 feet. A preliminary report1 was made in 1908 covering a series of one hundred cases. The findings at that time were in such marked contrast to the work of other observers, notably Gardiner and Hoagland2 of Colorado Springs, that we decided to continue our observations until we had obtained readings in a sufficient number of cases to make the conclusions of some value from a scientific standpoint.
With this idea in view we have made records covering a series of six hundred cases, and are gratified to note that the conclusions reached in our earlier report are even more strongly borne out by a more exhaustive research.
The question of blood-pressure in tuberculosis has usually been dismissed with the dogmatic statement