STATURE LAW Ol' GROWTH. 



ly 



Table shotcing the me(tn height, by years, and by groups of five years, from the age (f 17 to 45, of 190,021 

 Ameriean-born white tnen found Jit for military serviee. 



Age. 



Under 17 



17 years 



18 years 



19 years 



'20 years 



'21 years 



2"2 years 



'Xi years 



24 years 



W.') years 



26 years 



27 years 



28 years 



29 years 



:10 years 



31 years 



32 years 



3:! years 



34 years 



3r> years 



SH years 



37 years : . 



38 years 



39 years 



40 to 45 years 



Total . . 



By years. 



Number 

 measured. 



4()8 



937 



3(1, 456 



14,994 



11,526 



14,146 



10, 479 



8, 907 



7, 335 



7,940 



6, 986 



6,351 



6,033 



4,447 



6, 256 



5,562 



4,635 



3,939 



2,782 



4,966 



4,138 



4,172 



4,014 



3,402 



15, 750 



Mean lieight. 



Inches. 

 64. 11 

 65. 65 

 66. 39 

 67.07 

 67. 51 

 67.78 

 67. 92 

 68.01 

 68. Oi 

 68. 05 

 68.09 

 68.11 

 68. 13 

 68.17 

 68.18 

 68. 20 

 68.20 

 68. 29 

 68.35 

 68.47 

 68.28 

 68. 26 

 68.24 

 68. 23 

 68. 23 



190,621 I 67.69 



Metres. 

 1.6284 

 1. 6675 

 1.6863 

 1. 7036 

 1.7148 

 1.7216 

 1.72.52 

 1. 7275 

 1.7277 

 1.7285 

 1.7295 

 1. 7300 

 1.7305 

 1.7315 

 1.7318 

 1. 7323 



1.7323 

 1.7346 

 1.7361 

 1.7391 

 1. 7343 

 1.7.338 

 1. 7333 

 1 . 7330 

 1.7330 



1.7193 



Age. 



Under 20 vi-.irs . . . 



20 and under 25 



25 and under 30.. 



30 and under 35 . 



35 aud under 40 

 40 and over 



Total 



By iiuincjuennial gionji; 



Number 

 measured. 



Mean height. 



46,! 



■.2, 393 



31,757 



23, 174 



20,69-^ 

 15,750 



■| 



190, 621 



Inches. 



m. 



67. 82 



68. 10 



68. 22 



68. 30 

 ()8. 23 



()7. 69 



Metres. 



1. 61)1 1; I 



1.722i; 



1.7297 



1.7328 



1.7.348 

 1.7330 



1.7193 



It will be observed, in the foi-egoiiig table, that a small number of men appear as 

 under eighteen years of age ; these were recruits, (vohwk'erti,) and their acceptance was 

 generally accounted for by a note on the surgeon's part that the physical develo]jment 

 was too good in such cases to permit of their rejection. 



Quetelet's researches led him to determine the age of full height at the thirtieth year; 

 the increase after the twenty-fifth year being very slight, though regular. His tables, 

 showing the law of groAvth, were the result of long-continued and extensi>'e observa- 

 tions; and, as the rate of increase for the period concerned is strikingly corroborated by 

 the table just given, Quetelet's table is presented here for (Comparison.' 



Table of yearly groicth, (from Quetelet.) 



Age. 



At birth 



1 year 



2 ycar.s 



3 years 



4 years 



5 years 



6 years 



7 years 



8 years 



9 years 



10 years 



11 years 



12 years 



13 years 



14 years 



Yearly height, i Yearly increase. 



Age. 



1 



Melrcs. 

 0. 500 

 0. 698 

 0. 791 

 0. 864 

 0.927 



0. 987 

 1.046 

 1.104 

 1.162 

 1.218 

 1.273 



1. 325 

 1. 375 

 1.423 

 1.469 



Inches. 

 19. 685 

 27. 480 

 31.141 

 34. 015 

 36. 495 

 38. 858 

 41. 181 

 43. 464 

 45. 747 

 47. 952 

 50. 118 

 52. 165 

 54. 134 

 56. 024 

 57.835 



15 years 



16 years 



17 years 



18 years 



19 years 



20 years 

 25 years 

 30 years 

 40 years 

 50 years 

 60 years 

 70 years 

 80 years 

 90 years 



Yearly height. 



Metres. 

 1.513 

 1. .554 

 1.594 

 1. 630 

 1.655 

 1.670 

 1.682 

 1.686 

 1. 686 

 1.686 

 1.676 

 1.(560 

 1.636 

 1.610 



Inches. 

 59. 568 

 61.182 

 62. 75() 

 64. 174 

 (35. 158 

 (i5. 749 

 (>6.221 

 ()(). 379 

 66. 379 

 66. 379 

 65. 985 

 65. 355 

 64.410 

 63. 387 



Yearly increase. 



Metres. 

 0. 044 

 0. 042 

 0. 040 

 0. 036 

 0. 025 

 0. 015 

 0.012 

 0. 004 



Inches. 

 1.732 

 1.653 

 1.575 

 1.417 

 0. 983 

 0. 690 

 0. 472 

 0.157 



—0.010 

 —0.016 

 — 0. 024 

 — 0. 026 



—0. 394 

 —0. 630 

 —0. 944 

 —I. 023 



' Anihrnpom^trie, p. 177, Brnxelles, 1871. 



