1923. No. 4. PHYSICAL DEVELOPMENT OF CHILDREN AND YOUNG PEOPLE. 1 3 



emphatic steepness of tliese lines which connect the figures of height 

 at the entering and leaving of school. The steepness is demonstrated just 

 as plainly for tlie small, the medium tall ^^ and well as the tall children. 

 We are obliged to reason as follows, especially when we take the last 

 phenomenon into consideration: — The given tendency for growth or 

 possibility for growth, inherited from race and family whether it be 



111' 



no. 



eY:..-f;anu 



? - 2 s 5- 



Jil r/x >i.^.i 



= H - =• =- 'l^'-'is- 



weaker or stronger (cfr. small and tall families) is in the earlier un- 

 favorable environment strongly checked. A change takes at once place, 

 when the conditions for growth get free, natural unfoldment in a healthy 

 environment ^^. 



From fig. 4 is furthermore seen, that the open-air day school — 

 the children come in the morning, are getting three meals in the day, 



As "medium" is counted a bodily height within the standard deviation. 

 An investigation at another open-air school (Home for scrofulous, Medical society 

 of Trondhjem, 1921) did not show as sharply ascending lines, although sharper 

 than the averagte. The increases in weight were here very strong. What the cause 

 is of the difference between the two boarding schools has not been brought out 

 (perhaps investigations conducted different seasons of the year?). 



