THE AMERICAN 



MONTHLY 



MICROSCOPICAL JOURNAL. 



VOL. XVIII. MARCH. 1897. No. 2 



The Striped Muscle Fibre: A few Points in its Compara- 

 tive Histology. 



By LOUISE TAYLER, 



PATTERSON, N. J- 



(With Frontispiece.) 



The striped muscle fibre lias beeu the centre of interest 

 for many years. This may be seen from all l)()oks touch- 

 ing upon the subject found in any biological library. 

 Perhaps the most work has been done toward determin- 

 ing the ultimate nature of the cross striping, and in other 

 regards it has had less attention. In the few notes here 

 ottered, some points of a different nature are pu'esented; 

 points not so geneially presented in those discussions. 



The muscle tissue of the following animals has been 

 examined in regard to these i>oints: 



1 The Elasmobrauch, 2 Frog, 



3 Turtle, 4 Snake, 



6 Pigeon, Rabbit, 7 Cat. 



Before taking up this discussion a general review of 

 striped muscle nuiy be of use. The mass of skeletal 

 muscular substance is collected into distinct organs, mus- 

 cles, the most of which are attached by means of fibrous 



DBSCBIPTI<>^" OF THK FRONTISPIECE. 



1. Traiiscctiou of sti'iprd nniticle ; frog, 

 i. Transection ofgtripod muscle: rnbhit. 

 ■ '>. Larger section of striped muscle fil>ri- ; frog. 

 4. Same as Fim. 1, euliirged. 



6. Transection of striped muscle fibre: turtle, 

 fi. Trauseition of striped muscle fibre: pigeon. 



7. Same as in Kig. U, enlarged. 



8. Transection of striped muscle: i:i-day ciiicli embr.vo. 

 H. Transection of striped muscle; io-day oliick embryo. 



