The Microscope, 267 



fascicules farther. Fig. 19 is an enlarged view of e, Fig. 53, show- 

 ing the fibers; Fig. 20 is of Fig. 54, e, and Fig. 56, e; Fig. 21 is 

 of Fig. 57, e. 



Fig. 55-69 drawn with one-half and three-fourths inch Bausch 

 & Lomb objectives. 



BIBLIOGRAPHY. 



Brief statements are given of the special points in the articles 

 bearing upon the present paper, and the section of this paper to 

 which they refer is given in parenthesis. 



1. Baur, A. — Der Ban der Chitinsehne am Kiefer der 

 Flusskrebse und ihr Verhalten beim Schalenwechsel. Arch, fiir 

 Anat. u Phys., 1860, pp. 113-144, 2 pi. The figures show the 

 sarcolemma extending beyond the sarcous substance into the chitin. 

 (See Sec. 13.) 



2. Beale, L. S. — Distribution of nerves to the elementary 

 fibers of striped muscle. Phil. Tr., London, 1860, pp. 611-619, 1 

 pi. Gives figures of the capillaries and nerves in the diaphragm of 

 a white mouse, and says that most of the nuclei seen on the sarco- 

 lemma belong to blood vessels and nerves, p. 614. (Sec. 14). 



3. On the structure and formation of the sarco- 

 lemma of striped muscle, and the exact relation of the nerves, 

 vessels and air-tubes (in the case of insects ) to the contractile tissue 

 of muscle. Trans. Koyal Micr. Soc, 1864, pp. 94-108, 2 pi. 

 Says sarcolemma has not been demonstrated in the eye-lids and 

 eye-balls of the green tree-frog, nor in the heart or tongue, that is, 

 where the fibers branch or are finely divided, nor in developing 

 fibers, p. 95. (Sec. 13). There are fine processes connecting the 

 sarcolemma at every point with intermuscular connective tissue, p. 

 100. (Sec. 11, 13). 



4. New observations upon the minute anatomy of 



the papillae of the frog's tongue. Quart. J. Micr. Sc, 1869, pp. 

 1-18, 4 pi. Says the branches (^ /^ in width) (Sec. 5) of muscular 

 fibers end at the summit of the papillae, there being no striation 

 beyond the nucleus which is near the end of each branch, the 

 striated substance following the nucleus and being formed by it. 

 pp. 13-14. (Sees. 5, 6, 15, 14). 



5. Biesiadecki, A., u. Herzig, A. — Die verschiedenen Formen 

 der quergestreiften Muskelfasern. Sitzungsb. d. k. Akad. d. Wis- 

 sench. Math-naturw. CL, Wien, 1858, pp. 146-149, 3 pi. Figure 

 cylindrical, tapering and fusiform fibers, and both tapering and 

 branched ends from the trunk muscles of some of the larger 



