Chap. IV. 
MANNER OF DEVELOPMENT. 
109 
from 12,000 corpses how often each course prevails. 3 
The muscles are eminently variable : thus those of the 
foot were found by Prof. Turner 4 not to be strictly 
alike in any two out of fifty bodies; and in some the 
deviations were considerable. Prof. Turner adds that 
the power of performing the appropriate movements 
must have been modified in accordance with the several 
deviations. Mr. J. Wood has recorded 5 the occurrence 
°f 295 muscular variations in thirty-six subjects, and in 
another set of the same number no less than 558 varia- 
tions, reckoning both sides of the body as one. In the 
last set, not one body out ol the thirty-six was found 
11 totally wanting in departures from the standard de- 
“ seriptions of tire muscular system given in anatomical 
“ text-books.” A single body presented the extraordi- 
nary number of twenty-five distinct abnormalities. The 
s anre muscle sometimes varies in many ways : thus 
Trof. Macalister describes 0 no less than twenty distinct 
v ariations in the pedmaris accessorius. 
The famous old anatomist, Wolff, 7 insists that the 
internal viscera are more variable than the external 
parts: Nulla particula cst quee non aliter et aliter in 
dliis se habeat hominibus. He has even written a treatise 
°n the choice of typical examples of the viscera for 
^presentation. A discussion on the beau-ideal ot tlie 
liver, lungs, kidneys, &c., as of the human face divine, 
s °unds strange in our ears. 
The variability or diversity of the mental faculties 
*n men of the same race, not to mention the greater 
‘ Anatomy of the Arteries,’ by B. Quain. 
4 ‘ Transact. Royal Soc.’ Edinburgh, vol. xxiv. p. 175, 189. 
* 1 Proc. Royal Soc.’ 18G7, p. 51-1 ; also 1868, p. 483, 524. There is 
a Previous paper, 1866, p. 229. 
b ‘ Rroc. R. Irish Academy,’ vol. x. 1868, p. 141. 
7 ‘Act. Acad.,’ St. Petersburg, 1778, part ii. p. 217. 
