36 



CARL SCHIØTZ. 



M.-N. Kl. 



Table 12. 



Schools 



Middle 

 weight 



Proportio- 

 nate 

 number 



Schools for feebleminded 



Rosenhof 



Vahl 



Töien 



Kampen 



Vaalerengen 



Lilleborg 



Ruselokken 



Bjölsen 



Sagene 



Grönland 



Sofienberg 



Foss 



Oslo 



Grünerlökken 



Möllergaten 



Classes for hard of hearing (IIa) 



Lakkegaten 



Vaterland 



IIa 



Majorstuen 



Uranienborg 



Boltelokken 



Schools for delinquents 



8.6 

 9.1 

 8.4 

 8.3 

 8.3 

 9.4 

 10.3 



9-4 

 10.7 

 10.2 



ICI 



10.0 

 10.5 



II. 4 

 II. 4 



II-3 

 II. 4 

 12.0 

 14. 1 

 10.9 

 16.9 

 21.4 

 23-4 



0/0 



69.1 



75-1 

 74.6 



76.5 

 77-9 

 77-7 

 75-6 

 74-9 

 77-4 

 75-3 

 76.2 

 76.6 

 77.8 



77-1 

 76.0 

 76.7 

 76.4 



77-4 

 76.6 

 74.1 

 80.5 

 74-9 

 70-3 

 68.1 



0/0 



22. 1 

 16.3 

 16.3 



15-1 

 13-8 

 14.0 

 15.0 

 14.8 

 13.2 

 14.0 

 13.6 



13-3 

 12.2 

 12.4 

 12.6 

 1 1.9 

 12.3 



1 1.2 

 II. 4 

 11.8 



8.6 

 8.2 

 8.3 

 8.5 



2.13 

 2.08 

 2.07 

 2.07 

 2.06 

 2.06 

 2.06 

 2.05 

 2.04 

 2.03 

 2.03 

 2.03 

 2.02 

 2.02 

 2.01 

 2.01 

 2.01 

 2.00 

 1.99 

 1.98 

 1.98 

 1.91 

 1.87 

 1.86 



The statistical values, the average weight and the standard devi- 

 ation of the year classes for the whole city, the sexes separatedly, were 

 firstly computed. (These numbers which we were to use for hygienic 

 purposes have not been included in this work; our table i show the 

 public and higher schools separatedly.) The standard deviation is then 

 used as the principle of division, as every single boy and every single 

 girl is compared with the norm of the year class of its sex and entered 

 as "middle weight", if the weight lies within the outer borders of the 

 mentioned deviation, — as "under weight", respective "over weight", 

 if it lies outside same. In that way an enumeration of the single indi- 

 viduals will give a real foundation for comparison, even if the distri- 

 bution of age and sex is not precisely the same everywhere — as every 

 individual is counted in, independent of the age (an "under weight" 

 9 years old girl is counted in the same way as an "under weight" 14 years 

 old girl, — that is, after the comparison with the norm of the year class 

 of the sex has been done). 



The result for public and special schools is shown on table 12. 



In order to be able finally to characterize the school by a single 

 number, the "proportionate number" was computed: Every percentage 

 "over weight" is counted as "i", "middle weight" as »2", »under weight« 



