478 
A Second Study of the Human Viscera 
We now pass to the results of our investigation and begin with the specially 
selected series, the chief constants of which are given in Tables II and III. All 
the mean values which can be compared with those set out in Table I differ 
significantly therefrom ; the heart is heavier, the other organs lighter than in the 
first series. It is doubtful whether the changes in relative variability of the heart 
and kidneys are significant, the difference in the latter case being only 241 + 1"12. 
TABLE III A. 
Total Correlations. 
Heart 
Body-weight 
Kidneys 
Liver 
Brain 
["Body- 
length"] 
Age 
Heart 
Body-weight . . . 
Kidneys 
Liver 
Brain 
["Body-length"] 
Age 
1 
•65 ± -04 
■56+ -05 
•52 +-06 
•08 + -08 
[•42 ±-06] 
■04 ± -08 
■65 + -04 
1 
•37 + -07 
•57 ± -05 
•25 + -07 
[•52+ -06] 
-•03 +-08 
•56 + -05 
•37 +'07 
1 
•43 + -06 
■08 + -08 
[•28+ -07] 
-•05 +-08 
•52 +-06 
■57 + -05 
•43 + -06 
1 
•13+ -08 
[•41 + -06] 
- -16+ "07 
•08 + -08 
•25 + -07 
■08 + -08 
■13+ -08 
1 
[•27 +-07] 
- -08 + -08 
•42 +-06] 
'•52+ -06' 
'•28+-07] 
'•41 + -06' 
"■27+ -07 ! 
[1] 
[- -20±-07] 
•04+ -08 
-•03 ±-08 
- -05 + -08 
- -16+ -07 
- -08 +'08 
[-•20+ -07] 
1 
TABLE IIIB. 
Partial Correlations. 
Variables 
" Constants" 
Correlation 
Heart and Body-weight 
Heart and Kidneys 
Heart and Liver 
Body-weight and Kidneys 
Body-weight and Liver 
Kidneys and Liver 
Kidneys and Liver 
Body-weight and Liver 
Body-weight and Kidneys 
Heart and Liver 
Heart and Kidneys 
Heart and Body-weight 
■49+ "06 
•41 + -06 
•13+ -08 
- -07 + -08 
•36 + -07 
•21 + -07 
The liver, on the other hand, seems to be definitely more variable in the present 
series. Our finding, so far as the heart is concerned, confirms the remark of 
Pearson already cited. With respect to the correlations, those which have 
corresponding entries in Table I are larger than these, the coefficient involving 
the liver being significantly increased. Some of the other constants, while not 
matched in Table I, may be compared with the reductions of Blakeman* and 
Pearl f, viz. brain- and body-weights. Our mean brain is heavier than that 
deduced by Blakeman from the Middlesex Hospital data and near Pearl's figure 
* J. Blakeman, "A Study of the Biometric Constants of English Brain Weights," Biometrika, 
Vol. iv. p. 124, 1905. 
t E. Pear], "Variation and Correlation in Brain Weight," ibid. p. 13. 
