452 HUMAN REMAINS FROM THE NORTH KURGAN. 
the case when the pilaster is in the normal position or when it is moved. It 
follows from all this that the pilaster can not be caused by muscular action, but 
rather by the static demands of the bone. We know, indeed, that bone substance 
is deposited especially in those places through which the lines of greatest pressure 
and tension run. It is natural that pilaster-formation is found especially in such 
femora as have the muscle ridges well developed, since in individuals having strong 
muscles greater demands are made on the femora, and individuals whose femora 
are brought severely into play have their muscles strongly developed. 
e 9 

vo 6 oe 
ee Q «+ 
Fig. 494.—Cross-sections of the Femora, Tibiae, and Fibulae. 
Fig. Oe age phim pe ere 5 te} pk apt ee = iran of tuberosities. 
; bos ie , : ame at the height of foramen nutntivum. 
igre omni ra ae yearns ae (c) Right tibia in middle of diaphysis. _(d) Left tibia 
Lemtigth Goda Ke Rite (hans pees of Anau [| at height of tuberosities. (e) Right femur 
b ne he tidal (f) Richt { f of Anau V somewhat below middle. (f) Left femur 
Bae att ge aac st diaoh Flea hash 3 of a child (III 865) somewhat below middle (g) 
pean, physis. Right fibula of Anau III about middle of diaphysis. 
(h) Right fibula of a European at same place. 
Figure 493, b, shows the cross-section of the left femur of Anau I somewhat 
below the middle. This as well as the other represented cross-sections were 
obtained by the method with wax and plaster given by E. Fischer (1906, p. 184). 
The well-dried plaster casts, after being polished smooth on the section surface 
with fine glass-paper, were laid on photographic developing paper and copied 
under a circular movement beneath a gaslight. 
