THE STRUCTURE OF MUSCLE. 



91 



semi-fluid, but it hardens and becomes solid immediately 

 after death. 



Examined, with high magnifying powers, in this 



Fig. 111. — Axfdcii^ fiiri((tHh.—Pi.. a single muscular fibre ; transverse 

 diameter ,igth of an inch; B, a portion of the same more highly 

 magnified ; C, a smaller portion still more highly magnified ; 

 D and E, the splitting up of a part of fibre into fibrillaa ; F, the 

 connexion of a nervous with a muscular fibre which has been 

 treated with acetic acid. //, darker, and h, clearer portions of the 

 fibrillaj ; n. nucleus of sarcolemma ; /jc, nerve fibre; .s', sarcolemma; 

 t, tendon ; 1 — 5, successive dark bands answering to the darker 

 portions, ii, of each tilirilla. 



