Thomas Dwiglit 235 



auterior border of the humerus, instead of subsiding as it approaches 

 the lower end, becomes more and more prominent and is continued 

 into a stout process slanting downwards, forwards and somewhat in- 

 wards to end free above the inner half of the trochlea. The vertical 

 distance from the under side of the root of the process to the level of 

 the lowest point on the inner border of the trochlea is 4 cm. The lower 

 border of the process measures 16 mm. It is more difficult to measure 

 the upper border, as it has no definite beginning. It may be said to be 

 about 25 mm. The process is compressed from side to side, the vertical 

 diameter being about 11 mm. and the transverse about 6. It is some- 

 what enlarged at the free end, which is rough and irregular, and rather 

 suggestive of having been covered with non-articular cartilage ; the bone 

 is otherwise healthv, but the shape at the lower end is modified by the 

 exaggeration of tlie anterior border, which is, as it were, pulled forward 

 by this process. The posterior surface of the bone shows the effect 

 of the distortion, being hollowed above the olecranon fossa to a remark- 

 able degree. This very certainly is a congenital malformation, and no 

 post-partum pathological exostosis. If it made a foramen at all it 

 must have been by some connection with the ulna, but the appearance 

 of the joint does not indicate any limitation of motion. It is hardly 

 conceivable that it formed any connection with the internal condyle. Its 

 inner aspect is slightly grooved as if it may have rested against the 

 artery and nerve. It certainly is not an internal supracondyloid pro- 

 cess. It might be called an anterior or middle one, were the term con- 

 sidered justifiable. Gruber would have called it a false internal supra- 

 condyloid process. I cannot help thinking that Poirier (12) must have 

 met with some such process as this when he speaks of having witnessed 

 the removal of a supracondyloid process that interfered with the motion 

 of the joint. It is not credible that the ordinary supracondyloid pro- 

 cess should do this.' The same may l)e said of processes which are 

 easily felt during life. I examined the body on which this foramen 

 was found before dissection with a special view to supracondyloid pro- 

 cesses without detecting anything uncommon. 



I hesitate to agree with Solger in considering this as intermediate 

 between the internal supracondyloid processes and the " much rarer ex- 

 ternal ones." I do not admit a middle supracondyloid process. Ber- 



^ " J'ai pu sentir I'apophyse sur le cadavre entier et j'ai vu, a Londres dans 

 le service de Lister, enlever une apophyse tres developee qui, faisait saillie 

 sous la peau et genait les movements du coude: il fallut detacher les faisceaux 

 du rond pronateur qui s'inscraient sur le crochet osseux." 



