Explanation of [Book IX. 



one branch running along the fide of the middle 

 finger, next the fore ringer, and the other along 

 the fide of the fore finger next the middle 

 finger. 



42, The third, gives a branch to the firft lumbrical, 



and afterwards runs upon the fide of the fore 

 finger next the thumb. 



43, The fourth, goes to the thumb, and, there divid- 



ing into two, runs upon each fide of it. 



44, The fifth, which is here cut off, gives a branch 

 to the fhort. abductor of the thumb. And then 

 it gets between the mort flexor and the mufcu- 

 lus opponens of the thumb, and belongs to the 

 opponens. 



45> 45> Continuations of the brachial nerves. The 

 third pair of brachials 29, 29, after having run 

 backwards by the flioulder-bones from the 

 axillse, and then between the external brachial 

 mufcles on the one fide, and the long and fhort 

 heads of the bicipites on the other, and after- 

 wards between the internal brachials and long 

 fupinators, emerge here 45, 45, between thefe 

 Jail- mentioned mufcles, and thence proceed to 

 the infide of the fore-arm, where having given 

 off branches to the long fupinators and external 

 radial mufcles, they pafs through the fhort fupi- 

 nators 46, 46. 



47, 47, Nerves cut off. 



48, 48, Branches of the fourth brachial nerve, 30, 



going to die external brachial mufcle 49, 49, to 

 the internal ulnar, 50, to the profimdus. 

 51, A branch of the fame, which pafTes under the 

 internal ulnar to the back part of the extremity 

 of the fore-arm, and makes a fubcutaneous 

 nerve. 



After 



