212 MR. r. E. BEDDARD — CONTRIBUTIONS TO THE 



the femoral head of the biceps, and measures two and a half inches, being continuous 

 with that of the glutcBus maxiiims. 



(2) Glutmus medius is largely covered by the last; it arises from the greater part of 

 the fossa of the Uium, and from the tendon of the glutceus maxiimis {=■ fascia lata) ; 

 the tendon of insertion on to the head of the femur is dorsad of that of the glutceus 

 minimus. 



(3) Glutceus minimus. — This is of course the smallest of the three glutm; its 

 greatest diameter is three quarters of an inch ; it arises from the border of the greater 

 sciatic notch ; it is inserted partly on to the ligamentous capsule of the head of the 

 femur, partly on to the femur itself between the insertions of the glutceus medius 

 and the next muscle. 



(4) I am not quite certain what name to give to a triangular fleshy muscle taking 

 origin from the ilium, and inserted on to the femur in front of and below glutceus 

 minimus. 



(5) Pyriformis. — This muscle comes through the great sciatic notch ; it adheres 

 closely to the glutceiis medius, and is inserted by a tendon on to the femur just behind 

 the insertion of that muscle. 



(6) Obturator interims has, as usual, accompanying it two gemelli, and is inserted in 

 common with the next. 



(7) Obturator externus arises before the last, and is inserted in common with it on 

 to the fossa behind the great trochanter. 



(8) Quadratus femoris. — This muscle is entirely fleshy ; it arises from the tuber 

 ischii below the muscle next to be described ; it measures about half an inch across at 

 the widest part. 



(9) Biceps femoris. — This muscle has two heads : one of them arises from the hip- 

 bones, the other from the femur ; the first origin is from the tuber ischii, in common 

 with the last muscle and the two next to be described ; the muscle gets wider and 

 thinner towards its insertion, which is partly on to the fascia covering the knee-joint, 

 and partly (in common with the femoral head) on to the head of the fibula ; the femoral 

 head of the biceps arises from the femur along a line measuring two and a half inches, 

 almost exactly co-extensive with the insertion of the quadratus femoris, from the 

 tendon of insertion of which some of its fibres take origin ; its insertion is continuous 

 with that of the long head, and is on to the fibula in common with the very small portion 

 of the humeral head which is so attached ; some of its fibi-es seem to run down and 

 become continuous vt'ith flexor, which muscle, at any rate partly, arises from the tendon 

 of insertion of the biceps. 



(10) Semimembranosus arises by a flat, mainly tendinous, head in common with and 

 below the origins of the biceps and Semite ndinosus ; it is inserted by a short and stout 

 tendon on to the inner side of the tibia. 



(11) Semitendinosus. — This muscle is nearly of the same size as the last ; its origin 



