893 



5794. The proximal phalanx of the middle finger, longitudinally bisected. 



This is also remarkable for the thickness of the compact walls of the medullary cavity. 



Prepared in 1851. 



5795. The right os innominatum, with the ilium, longitudinally bisected. 



The compact walls are thickest above the great ischiatic notch. 



5796. The right ilium of a young Child, longitudinally bisected. 



It shows a larger proportion of the cancellous structure than hi the adult. 



Hunterian. 



Hunterian. 



5797. The left os innominatum, longitudinally bisected, through the cotyloid cavity. 



A thick stratum of diploe or cancellous texture is included between the compact inner and 

 outer plates of the ilium, of which the outer is the thickest : they recede from each other 

 towards the acetabuluin, where the cancellous structure is more abundant, except at its lower 

 half, where it is almost absent. The compact wall of the pnbis is very thin, and includes a 

 light and delicate cancellous texture. 



Hunterian. 



5798. The left os innominatum, transversely bisected through the cotyloid cavity. 



The compact wall of the cavity is thickest at the rim. 



Hunterian. 



5799. The hinder moiety of a right femur, longitudinally bisected. 



At the proximal end may be discerned a trace of the confluence of the epiphysial head with 

 the neck, and a similar trace may be followed across the base of the great trochanter. The 

 columnar cancelli are arranged hi decussating curves, like the arches hi Gothic architecture, 

 where they transfer the weight sustained by the head and neck of the bone upon the strong 

 and compact shaft : here the dense tissue is disposed as a hollow column and forms the walls 

 of a medullary cavity : this is gradually obliterated by fine cancellous structure towards the 

 distal end, where the compact wall progressively diminishes in thickness : scarcely any trace 

 of the confluence of the epiphysis can be discerned at this extremity of the bone. 



Hunterian. 



5800. The left femur, longitudinally bisected. Hunterian. 



5801. The proximal part of a left femur, longitudinally bisected. 



A tract of cancellous structure, more compact than the rest, extends from the middle of 

 the head to the under part of the neck. 



Hunterian. 



