DURINCi POST-NATAL DEVELOPMENT. 



493 



These estimates of volume of the various parts of the body are based primarily 

 on the data published by Meeh (1895), see tables B and C. These data have been 

 supplemented by a few observations of my own on the volume of the cadavers of 

 an infant and a young child, the volume of a living child of 6 years, and the volumes of 

 the lower extremities in 20 young men; as well as by a study by one of my students, 

 K. L. Puestow, of the volume of the head in 34 adults and 6 children. The data are 

 too scanty to furnish more than approximate estimates of normal relative volume. 



"T" 



70 



FIG. 2. To illustrate the proportions of the body of a man and of a woman, age about 30, 

 of average height and weight, and the body of a man of 60 to 70 years. See text, p. 492. 



Curves of volumetric proportions. I have endeavored in chart K, p. 538, to 

 illustrate by curves the changes in relative volumetric proportions which take place 

 during growth in individuals of normal build. The figures from which these curves 

 are plotted are given in table K. It is assumed that the distance from the top to 

 the bottom of the chart represents total volume at any given stature. This total 

 volume is subdivided into the volume of the head to the larynx, that of the trunk 

 from the top of the larynx to the crotch, that of the inferior free extremities (sub- 



