1867.] Mr. J. Wood on Variations in Human Myology. 545 



Of the remaining 106 found in the lower limb 7-1 were in male, and 32 

 in female subjects, proportionately a considerably greater average on 

 the side of the female. So far as these go, abnormalities of muscles 

 appear to preponderate in the male, in the head, necJc, thorax, and arm^ 

 and, in the female, in the leg. 



In a much greater proportion than this on the male side were the 

 special abnormalities of the cleido-occipital, pectoralis major, biceps, 

 coraco-brachialis, brachialis anticus, flexor longus poUicis, lumbricales 

 and interossei manus, flexor carpi radialis profundus, palmaris longus, 

 supinator longus, extensor communis and brevis digitorum manus, and 

 extensor carpi ulnaris in the upper limb ; and the peroneus quinti, ex- 

 tensor longus and brevis digitorum, and lumbricales pedis in the lower. 

 On the female side the most tangible preponderance is found in the 

 frequency of absence of the peroneus tertius, and of the presence of the 

 abductor ossis metatarsi quinti, the extensor carpi radialis intermedins, 

 and of the extensor longus primi internodii hallucis. 



The Table shows as decidedly as that of last year, the general absence 

 of correspondence in combination of the muscular abnormalities. 



Of the 14 subjects in which there are more than 10 variations, three 

 only are females. One subject has 17 muscular abnormalities, of which 



15 are connected with the arms, and 2 only with the legs. Two have 



16 abnormalities; in one of them 11 are connected with the arms 

 (including the cleido-occipital and the occipito-scapular given in fig. 1), 

 1 with the head, and 4 with the legs ; the other has 5 in the legs and 1 

 in the head and neck. Two males have each 13 abnormalities ; in one 

 10 are connected with the arms, and 3 with the legs ; and in the other, 

 1 is found on the ribs, and 4 in the legs. Three subjects (one of them 

 a female) have 12 abnormalities, of which 7 belong to the arms. One 

 male has 11, of which 8 belong to the arms. Two females have each 11, 

 of which 6 in one, and 5 in the other, belong to the arms ; and 4 in one, 

 and 5 in the other, to the legs. Three subjects have 10 abnormalities, 

 of which 4, 6, and 7 respectively are found in the arms ; one of these, a 

 male, and another a female, have each 5 belonging to the legs. In 13 sub- 

 jects no abnormalities are found in the head and neck. In 7 more, those 

 which were found there acted equally on the bones of the upper limb. 

 This leaves 14 in which the muscles of the head, neck, and thorax only 

 were concerned. In 1 subject only, a female, were no abnormalities 

 found in the arms, the only abnormal muscle discovered being the ab- 

 ductor ossis metatarsi quinti. In a male (No. 4) 2 only were found in 

 the arms, and 4 in the legs. In 5 subjects one variation only is found 

 in the legs, the others being found chiefly in the arms. 



No levator claviculse, extensor carpi radialis accessorius, or sternalis 

 muscles have this year been found. "With the exception of these and 

 five others, all that were recorded last year have been found also this 

 year, with the addition of abnormalities in 10 other muscles. 



