382 Mr. J. Wood Varieties in Human Myoloyy. [June 15, 



The left abductor pollicis was a double muscle, which is also commonly 

 found. 



On the back of both hands was a good specimen of the muscle first 

 described and figured by the author, in his last paper, as an extensor brevis 

 digitorum manus. It was arranged in three slips, arising by a common 

 aponeurosis from the magnum and unciform bones, the two outer inserted 

 with the dorsal interossei muscles into the extensor aponeurosis at the 

 base of the middle finger ; and the inner, into the same structure at the 

 base of the ring-finger. 



This muscle was also found very well marked in another muscular male 

 arm, associated with the fusiform deep palmaris just described. 



Fig. 2 is drawn from this specimen, and it will be seen that in it there 

 is a still closer approach to the ar- Fig. 2. 



rangement of the extensor brevis 

 digitorum pedis, inasmuch as the 

 outermost slip is not inserted with 

 the second dorsal interosseus into 

 the middle finger, but with the 

 first palmar interosseus into the 

 ulnar side of the index or second 

 digit and its extensor aponeurosis. 

 This specimen has been preserved 

 as a preparation for the Hunterian 

 Museum of the Royal College of 

 Surgeons, where it may be in- 

 spected by those interested in the 

 question. 



In the foot of the subject first 

 mentioned, the tibialis anticus on 

 both sides, sent forwards a tendi- 

 nous slip, one-eighth of an inch wide, 

 to be inserted with the tendon of 

 the extensor proprius hallucis into 

 the base of the first phalanx of the 

 great toe. (This was also found 

 in a female subject on both sides.) 



The peroneus brevis sent off a tendinous slip (peroneus quinti) to the ex- 

 tensor aponeurosis of the little toe on both sides. 



The peroneus tertius, on both sides, had a very broad tendon, which 

 was inserted into the base of the fourth as well as the fifth metatarsal 

 bone. 



The same peroneal disposition (tertius and quinti) was also observed in 

 another muscular male foot, with an additional peculiarity which caused it 

 to be selected as the subject of fig. 3, where it is seen at a. In both these sub- 

 jects an abductor ossis metatarsi minimi digiti was present on both sides. In 



