vi.] DATA. 79 



variations in stature among Brothers. I circulated cards 

 of inquiry among trusted correspondents, stating that I 

 wanted records of the heights of brothers who were more 

 than 24 and less than 60 years of age ; that it was 

 not necessary to send the statures of all of the brothers 

 of the same family, but only of as many of them as 

 could be easily and accurately measured, and that the 

 height of even two brothers would be acceptable. The 

 blank forms sent to be filled, were ruled vertically in 

 three parallel columns : (a) family name of each set of 

 brothers ; (6) order of birth in each set ; (c) height 

 without shoes, in feet and inches. A place was reserved 

 at the bottom for the name and address of the sender. 

 The circle of inquirers widened, but I was satisfied when 

 I had obtained returns of 295 families, containing in 

 the aggregate 783 brothers, some few of whom also 

 appear in the E.F.F. data. Though these two sets of 

 returns overlap to a trifling extent, they are practically 

 independent. I look upon the " Special Observations " 

 as being quite as trustworthy as could be expected in any 

 such returns. They bear every internal test that I can 

 apply to them in a very satisfactory manner. The mea- 

 sures are commonly recorded to quarter or half inches. 



Measures at my Anthropometric Laboratory. — A 

 third set of data have been incidentally of service. 

 They are the large lists of measures, nearly 10,000 in 

 number, made at my Anthropometric Laboratory in the 

 International Health Exhibition of 1884. 



4. Experiments on Sweet Peas. — The last of the data 



