SECOND DAY'S SITTING. 43 



fasciculi in five different situations, namely, in the axilla), 

 near the scapulae, Ac., all of which must be referred to the 

 system of the panniculus." (Vol. i. p. 19.) 



Lord C. You have just said that " rudimentary organs are 

 eminently variable." Is it not also so with the muscles of the 

 human body ? Do they not vary in different individuals ? 



Darwin. " The muscles " of the human body " are emi- 

 nently variable," my Lord. " Thus, those of the foot were 

 found by Professor Turner not to be strictly alike in any 

 two out of fifty bo lies. . . Mr. J. Wood has recorded the 

 occurrence of 295 muscular variations in thirty-six subjects, 

 and in another set of the same number, no less than 558 

 variations, reckoning both sides of the body as one. . . . 

 A single body presented the extraordinary number of 

 twenty-five distiuct abnormalities. . . . The famous old 

 anatomist, Wolff, insists that the internal viscera are more 

 variable than the external parts. . . . He has even written 

 a treatise on the choice of typical examples of the viscera 

 for representation." (Vol. i. p. 109.) 



Lord C. I presume that, as to his physical structure, man 

 varies as much internally as he does externally ? 



Darwin. " It is manifest," my Lord, " that man is now 

 subject to much variability. No two individuals of the 

 same race are quite alike. We may compare millions of 

 faces, and each will be distinct. There is an equally great 

 amount of diversity in the proportions and dimensions of 

 the various parts of the body ; the length of the legs be.ng 

 one of the most variable points." (Vol. i. p. 108.) 



Lord C. How do you think those variations are to be 

 accounted for ? 



Darwin. " With respect to the causes of variability," my 

 Lord, " we are in all cases very ignorant ; but we can see 

 that in man, as in the lower animals, they stand in some 



D 2 



