Right calf | 12.64 | 13.8 Left calf | 12.66 | 13.8 ---------------------------+-----------------------+---------------- TABLE II ==================================================================== | Average measurements | Average | of Porto Rican women | measurements of | students from 16 to | American women | 28 years of age | from 17 to | | 30 years of age --------------------------+-----------------------+------------------ Height | 61.78 | 62.9 Weight | 107.82 | 116. Chest, transversal | 9.35 | 10. Chest, anterior-posterior | 6.93 | 6.8 Shoulders | 13.64 | 14.4 Neck | 11.98 | 12.1 Chest, natural | 29.19 | 29.7 Chest, contracted | 28.57 | 29.6 Chest, expanded | 31.29 | 32. Waist | 25.14 | 24.3 Hips | 33.76 | 35.7 Right forearm | 8.71 | 8.8 Left forearm | 8.61 | 8.6 Right arm down | 8.44 | 9.8 Left arm down | 8.40 | 9.7 Right arm up | 8.99 | 10.8 Left arm up | 8.82 | 10.6 Right thigh | 18.79 | 21.1 Left thigh | 18.65 | 21. Right calf | 12.66 | 13. Left calf | 12.64 | 13. --------------------------+-----------------------+----------------- If it is true that the Porto Rican reaches the height of physical development at the age of eighteen, then we may consider that an average of the measurements of the men and women from and after that age will give us what is practically the representative physical development of the Porto Rican adult. These averages are found in the following table. TABLE III _Representative development of Porto Rican students at the University of Porto Rico, of more than 18 years of age._