GROWTH OF THE HUMAN BODY 711 



to July or August. Then follows a third period which continues until Novem- 

 ber or December. The increase in height is now very feeble, but the increase 

 in weight rises rapidly and becomes considerable. 



The weight of the adult body varies greatly, but may be estimated at 

 65-70 kg. for men and 56-60 kg. for women. At a mature age the weight 

 in both sexes as a rule becomes greater by the deposit of fat. 



The height of men of different nationalities is somewhat variable, as the 

 following table compiled from average measurements of military recruits at 

 the age of twenty to twenty-one years in the different countries will show : 



Laplander 150.0 cm. 



Hungarian 163.3 " 



Bavarian 163 .8 " 



Russian 164.2 " 



French 164.9 " 



Italian (from different provinces) 156.0-166.5 " 



Finlander (from different provinces) 165.9-169.9 " 



English and Irish 169.0 



Silesian 169.2 



Dane 169.2 



Norwegian 169.6 169.8 " 



Scot 170.8 



United States 173 .3 " 



Variations within the same nationality are considerable, as may be seen 

 from Fig. 305. This represents, according to Hultkranz, the height of 

 Swedes as determined by measurements of 232,367 military recruits made 

 between 1887 and 1894. 



We have no measurements similar to these for women but from observa- 

 tions which have been made, we may say that, on the average, a grown woman 

 is about 12 cm. shorter than a grown man. 



REFERENCES. Beyer, Proceedings of the United States Naval Institute, xxi, 

 1895,Daffner, " Das Wachstum des Menschen," Leipzic, 1897. Exner, " Physi- 

 ologic der Miinnlichen Geschlechtsfunktionen," in the " Handbuch der Urologie," 

 Wien, 1903. Key, Verhandlungen des X. internationalen medizinischen Kon- 

 gresses, vol. i, Berlin, 1890. W. Nagel, "Die Weiblichen Geschlechtsorgane," 

 in v. Bardele'ben's Handbuch der Anatomic des Menschen, vii, 2, 1, Jena, 1896. 

 W. T. Porter, Transactions, Academy of Science, St. Louis, 1893-1894. 

 Vierordt, " Die Physiologic des Kindesalters," in " Gerhardt's Handbuch der 

 Kiiiderkrankheiten," i, Tubingen, 1881. E. B. Wilson, " The Cell in Develop- 

 ment and Inheritance," second edition, New York, 1900. 



