246 TRANSACTIONS OF THE [May 13, 
2. 3, Ireland, aet. 32. November 29, 1893. 
Plate XX VII. Right upper extremity. Under cover of in- 
sertion of Pectoralis major, a broad tendinous band descends 
over the intertubercular groove, derived from the shoulder cap- 
sule and covering the long tendon of the Biceps, to which it is 
connected by a thin but strong tendinous lamina. The lower 
portion of this band terminates in a broad muscular sheet, which 
turns inwards to join the medial margin of the long head. 
A few scattered tendinous fibres descend obliquely from the 
capsule to the outer margin and anterior surface of the Jesser 
head. 
The left upper extremity of the same subject presents the 
gleno-ulnar slip with intermediate connection to the deep pec- 
toral tendon. (Variety “a.”) Plate XXVIII. 
Here a strong tendinous band, arising from the intertubucular 
portion of the capsule, and connected with the upper part of the 
deep surface of the Pectoralis tendon, becoming free below, 
crosses obliquely over the long bicipital tendon to fuse with the 
inner margin of its muscular belly a short distance before the 
same is joined by the coracoid head. 
A small tendinous bundle (Capsulo-intermediate fibres), aris- 
ing from the coraeoid portion of the capsule, accedes to the outer 
part of the coracoid head. 
Insertion of Biceps in this arm: Radial tendon derived as 
usual from the deep surface of the combined muscle. Superfi- 
cially some fibres pass from the outer part of the muscle across 
the radial tendon into the semilunar fascia, which is inserted by 
a forked process into the radial as well as the ulnar side of the 
deep forearm fascia. 
ce. Transition forms between “a” and “b,” and variations. 
Cases : 
1. ¢, Ireland, aet. 53. March 16, 1894. 
Plate XXIX. Left upper extremity. 
Gleno-ulnar tendon slip, presenting a reduplication of the 
origin. The outer band is connected with the Pectoralis major 
tendon ; the inner is free. They join opposite the middle of the 
pectoral tendon and develop a stout, muscular belly, which can 
be followed as far as the elbow, where a few of the deeper fibres 
pass into the inner margin of the radial tendon of insertion, 
whereas the remainder of the deep and all the superficial fibres 
of the accessory head, joined by some from the outer margin of 
the main muscle, pass inward into the bicipital fascia. 
2. 6, Ireland, aet. 35. March 14, 1894. 
Plate XXX. Left upper extremity. 
Gleno-ulnar tendon, double at origin, a portion passing into 
