592 MR. J. C. GALTON ON THE MYOLOGY OF 



above, letters this muscle as the " moyen adducteur " (the " adductor lonjms " of the 

 modern English schools). 



This adductor has a large fleshy origin from the ascending ramus of the ischium and 

 from part of the triangular surface included between the obturator foramen and the 

 tuberosity, being overlapped by the adductor muscle last described, and covered for the 

 rest of its extent by the semimembranosus, tendinosus, and biceps. Narrowing gradually 

 towards its termination, it is inserted, partly fleshy, partly tendinous, into a sharp- 

 pointed tubercle situated on the ridge which runs down from the lesser trochanter, alon» 

 the inferior surface of the femur, just superior to the combined insertions of the adductor 

 longus and the first division of the pectineus. 



The muscle which I have termed adductor longus may, after all, be only a third 

 element of the pectineus. 



Cuvier, although he has represented two adductors in his plates, has nevertheless 

 left on record the following note, which M. Focillon has appended to his description of 

 these plates,— -" II n'y a qu'un adducteur." 



The Ai has, according to Meckel 1 , four adductors, besides a pectineus of very great 

 extent of insertion. The Anteater, also, has a large pectineus, but only a single adductor, 

 which, however, is well developed, and formed from three heads. 



Quadriceps extensor.— The rectus femoris has no peculiarities worthy of much notice. 

 It was well developed, and took origin from the superior and posterior margins of the 

 acetabulum, and was inserted into the superior edge of the patella in company with the 

 vastus of either side. 



The vastus externus was enormously developed. It arises from the external aspect of 

 the femur and from the whole of its anterior suriace, from as high a position as the space 

 included between the great trochanter and the head of the bone. It is inserted into the 

 outer edge of the patella, overlapping the rectus at its insertion. 



The vastus intemus is much smaller, but is so fused with the preceding muscle in the 



middle line, that a boundary can hardly be sharply marked between them. It arises 



rom the inner edge of the upper half of the femur immediately below the head of the 



bone and is inserted, having previously fused with the rectus, into the inner edge of the 



patella. The aponeurotic termination of the sartorius is intimately adherent to its 

 upper surface. 



No crureus can be differentiated from the muscle, unless the lowermost layer of the 



muscle 



which arises from the anterior 



ipect of the femur, be reckoned as this 



of the 



somlTof the^f ^ 5* C T eCted WHh the Sm00th broadcned-out „ 5 . „, ~~ 



o? side tat tl \* 7 S ? gament ™ P a W * fastened to the femur by a kind 



ittSpitf s^zjr lisameiit wMch passes from its ****** to 



Sartorius 



stron ,lv dte W, ^ ^ ^ ^ ™ &0m itS USUal <**«*. *™» * ™ fronl 



in :;t. d r5;: d fcr: e tu f bercle \ irumediateiy above the ^ ««• ° s 



it men passes forwards, and ends in the upper portion of the 



of the gracilis 



1 Op. cit. p. 596. 



