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PATTEN AND REDENBAUGH. 



cardiac root {s.c.n.^) of the eighth gives a branch to the lateral sympathetic nerve 

 {l.s.n.). A branch (x.), which may be either a cardiac or an intestinal nerve, 

 arises from the fifth haemal nerve {/i.n.^). 



In the third, fourth, and fifth appendages there are three ento-coxal branches 

 of the neural nerve ; an anterior one {a.e.n.), innervating the muscles of the ante- 

 rior side of the entocoxite and the anterior sensory knob ; a posterior one {p.e.n.), 

 innervating the muscles of the posterior side of the entocoxite and the posterior 

 sensory knob; and a median one, going to the median {tn.e.n.) sensory knob. 

 The median one arises from the neural nerve at some distance from the brain, and 

 hence is represented with its proximal end cut off. 



In the second appendage only the anterior and posterior ento-coxal nerves 

 {a.e.n.'^ zndji.e.n.^) have been found. 



In the sixth appendage the median sensory knob is replaced by the flabellum, 

 and the median ento-coxal nerve (m.e.nfi) becomes the flabellar nerve. This is 

 also cut off at its proximal end. 



