144 



EEPORT — 1880. 



Bemarks on Table XVIII. 



The number of persons observed in the above tables is too small to 

 admit of drawing any positive conclusions from the data ; but it is hoped 

 that they may be confirmed, or corrected, by other independent observa- 

 tions. 



1° The average growth of the girls in each year from 1 to 5 exceeds 

 that of the boys, but in a decreasing ratio, viz. : — 



-excess of girls- 



In 2ud year, viz. : from I to 2- 

 3rd „ „ 2 „ o 



4th „ „ 3 „ 4 



5th „ „ 4 „ .5 



Averasfe 



-8 '3 per cent. 

 6-2 „ 

 6-1 

 41 „ 



6-6 



From 5 to 6 the scale inclines slightly in favour of the boys, viz. : 

 o ; but as from 6 to 7 it turns back agaia, being 7 % in favour of 



2° 



the girls, it may be assumed that the deviation was accidental, and that 

 from 1 to 7 years of age the growth of the girls exceeds that of the boys, 

 the average excess of the whole period being 5 2 %. 



3° From 7 to 9 the scale turns decidedly in favour of the boys, being 

 8"1 % in excess, but from 9 to 13 there is a marked excess in favour of 



the girls, viz. : — 



Excess of Girls 

 In 10th year, viz. : from 9 to 10 — 14'6 per cent." 



11th „ „ 10 „ 11 — 141 „ I Average 



12th „ „ 11 „ 12— 43-6 „ ( 31-1 per cent. 



13th „ „ 12 „ 13—50-5 „ J 



4° The great excess between 11 and 13 is the more remarkable, as after 

 the latter year the scale turns in favour of the boys, and continues up to 

 19, when the number of observations is too small to admit of any conclu- 

 sion being drawn from what may have been an accidental change. 



Excess of Boys 

 In 14th year, viz. : from 13 to 14 — 29-2 per cent. 



15th 

 16th 

 17th 

 18th 

 19th 



14 

 15 

 16 

 17 

 18 



15— 82-9 

 16—203-9 

 17-137-7 

 18—366-6 

 19— 55-1 



5° From the above it will be seen that 



From 1 to 7 the growth is slightly in favour of girls, viz. 

 7 „ 9 „ ,, „ boys, „ 



9 

 11 

 13 

 15 



11 

 13 

 15 

 18 



moderately „ 

 largel}- „ 



immensely „ 



girls, 

 boys, 



Average 

 95-4 per cent. 



5-2 per cent. 



8-1 „ 

 14-4 

 47-2 



50-6 „ 

 200-0 



With regard to the last proportion the fact is that while at the age of 12 

 the annual growth among the boys begins to increase — averaging about 

 that which they made between 4 and 9 — it decreases rapidly among the 

 girls. The total increase from 15 to 19 among the boys was 5'76 inches, 

 and among the girls only 2-50 inches. 



6° In comparing the maxima and minima growths of the two sexes, 

 there appear to be in the former no very marked features up to the age 

 of 11. 



