GROWTH OF HOBART SCHOOL BOYS. 825 
Sweden, draws special attention to this fact in his excellent 
report on the result of the inquiries into the physical con- 
dition of some 30,000 Swedish school children. The years 
of checked growth is the period when vitality seems lowest, 
and the power of resistance therefore smallest. 
Diagram C.—Growth of Swedish Boys.—Prof. Keys table, 
showing how many boys suffer from ill-health at each year, 
shows us the maximum percentage for the tenth year, and we 
find this is the year of most retarded growth in his country. 
Let us compare the height of our Hobart boys with the 
height of some other boys that have been measured. 
Tasmanian and Boston Boys.—On Diagram D, line A 
represents the Tasmanians ; the line B represents the height 
of boys from the Boston public schools, as measured by Dr. 
Bowditch, and have been taken irrespective of parentage. 
The boys have thus been taken from almost the same social 
grade. Notice how closely the lines run to each other till 
the fourteenth year, when the Hobart boys fall slightly to 
the rear. 
Diagram E.—This chart compares Hobart Boys’ height 
(line A) with that of English city boys (line B) of the 
labouring classes—(Roberts.) You see this comparison isin 
favour of the Tasmanian. The third line (C) represents 
Boston boys of American parentage.—( Bowditch.) 
Diagram F.—On this chart the height of German boys 
is indicated by line B. For the first five years you notice 
that the Tasmanians (line A) are the tallest. The third 
line (C) represents Belgian boys.—(Quetelet.) 
Diagram H. On this diagram the lines indicate rate of 
growth of boys. Line C' is the Tasmanian line. Lines 4 
and B are taken from Dr. Seaver’s book on Anthropometry. 
The top line A is taken from Gilbert’s table; the middle 
line B represents the growth of New Haven boys. Observe 
how much lines A and B are like the line indicating the 
Tasmanian growth-rate. Each has two years of retarded 
growth about the same time. 
Diagram I.—The top line represents Sydney boys (Cogh- 
lan’s measurements); and you will notice that they are 
considerably taller than the Hobart boys, whose height is 
marked by the lower line. 
Allow me to put a few comparisons of heights of boys 
before you in a different way. I purpose naming the sum 
