SOCIETY OF THE UNIVERSITY OF ABERDEEN. 101 



Date of observation, December, U0:>. 

 Sex, Male. 



Abnormal insertion of the extensor ossis metacarjti pollicis. 



In this case the tendon split into two parts about ~2 inches from 

 its insertion. The larger part went to the base of the first metacarpal, 

 while the other split into two one going to the abductor, while the 

 other went to the trapezium and adjacent ligament. 



(Signature of observer) NOKMAX S. GILCHRIST. 



Date of observation, December, 1900. 

 Sex, Female. 



Abnormal bursa on back of knee-joint (rir/kt). 



The bursa is kidney-shaped, having two lobes and a constriction 

 separating them, and lies with its longest axis supero-inferiorly, and 

 curved so that the poles are more internal than the body of the bursa. 

 The upper and smaller lobe runs from without, inwards and down- 

 wards towards the attachment of the bursa, whilst the lower lobe 

 runs horizontally from without inwards to the same attachment. 

 The constriction runs from without inwards and slightly downwards 

 to within \ inch from the attachment of the lobes, and is deeper and 

 wider externally than near the attachment. The bursa measures 

 .").") cm. in its greatest length, 3'8 cm. in its greatest breadth and 

 34 cm. in its greatest depth, and lies between the semi-membranosus 

 and the inner head of the gastrocnemius, and overlaps the internal 

 popliteal nerve and popliteal vessels. It is external and inferior to 

 the inner condyle of the femur. The bursa is attached externally to 

 the inner margin and lower surface of the inner head of the gastroc- 

 nemius for about 1 inch, and to the oblique ligament, while internally 

 it is attached to the outer margin and lower surface of the semi- 

 membranosus for about t inch. Its relations posteriorly are the 

 fascia and integument, externally the inner head of the gastrocnemius, 

 internally the semi-membranosus and anteriorly the posterior and 

 oblique ligaments. 



(Signature of observer) JAMES GORDON DANSON. 



