58 PROFESSOR STRUTHERS. 



prepuce on the anterior half of the penis. Although not noted 

 during the dissection, the edges, I think, were joined by, or gave 

 off, a fibrous expansion, but the band stood out prominently as 

 a long flat tendon-like structure, and, as above noted, lay super- 

 ficial to the great transverse interpelvic aponeurosis. 



Summary of the Connections of the Femur. — («) The 2)urely 

 fibrous connections are, 'posteriorly, the deep posterior ligament 

 to the pelvic bone ; and superficial to it, the fibrous stratum to 

 the pelvic bone and interpelvic ligament. These will offer 

 strong resistance to over-advancement of the femur. Anteriorly, 

 the prolongation band. The anterior attachment of this band 

 not being to bone, the resistance offered by it to retraction will 

 not be very definite. Internally, to its fellow, by the great 

 transverse aponeurosis. This will offer strong resistance to 

 outward movement. Externally , the external lateral ligament 

 to the pelvic bone ; and the adhesion of the longitudinal 

 tendinous tissue on the outer side of the pelvic bone. (6) 

 Muscular influences. — From the caudal muscular mass, by those 

 parts of its anterior tendinous prolongation which are attached 

 to the hinder end and outer border of the femur. Will tend 

 to pull the femur backwards and a little outwards when the 

 pelvic bone is being retracted. The special retractor muscle, 

 which will pull the femur backwards and a little inwards, when 

 a tight condition of the interpelvic ligament and crus penis gives 

 the muscle a fixed point to pull from. The only muscular 

 action on the femur, therefore, appears to be retraction, and 

 the chief ligamentous resistance is against advancement. 



Exact Position of the Femur. — On the right side, that of the 

 larger femur, about the posterior half of the femur lies on the 

 pelvic bone. On the left side, the like decussation of the axes 

 of the beak and of the femur, leaves but the apex of the femur 

 in front of the beak. The right femur lies in the general hollow 

 of- the beak, with their periosteum and loose tissue between. 

 On the left side, in addition, the middle stratum of the transverse 

 aponeurosis was noted as l}ang between, the left femur being 

 placed somewhat more internally than the right, as represented 

 in the figure. Now, in the ligamentous preparation, the parts 

 being quite loose, it looks as if the left femur had lain in the 

 same position as the right, allowing for its being shorter. The 



