Interest in the correspondence of visceral form, position and tonus to bodily habitus as observed in gastro-intestinal roentgen-ray studies suggested the analysis of some available data as to the relation of blood pressure to bodily habitus.
The conceptions of bodily habitus as followed in this analysis are those formulated by Mills;1 and they are used in the classification of the subjects of this study. The sthenic type (Fig. 1) is of strong skeletal build, short and deep thorax, relatively broad shoulders, a costal angle of 90 degrees or more, and has a narrow pelvis as between the anterior superior spines of the ilia. The hypersthenic type (Fig. 2) is an accentuation of all the sthenic characteristics, giving a massive build, with short, deep and broad thorax, an obtuse costal angle and narrow pelvis. The torso is massive above. The asthenic type (Fig. 3) is of delicate skeletal build, with long