60 
10 
11 
12 
13 
14 
15 
16 
17 
18 
19 
H. E. JORDAN 
LITERATURE CITED 
Briicke, E. 1858 Untersuchungen iiber den Bau der Muskelfasern mit 
Hilfe der polarisierten Lichtes. Wiener Denkschr. mat.-nat. Klasse, 
Bd. 15, S. 69. 
Buuiarp, H. H. 1916 On the occurrence and physiological significance of 
fat in the normal myocardium and atrio-ventricular system (bundle 
of His), interstitial granules (mitochrondria) and phospholipines in 
cardiac muscle. Am. Jour. Anat., vol. 19, p. 1. 
DauuGREN, U., AND Kepner, W. A. 1903 Principles of animal histology, 
p. 85. Maemillan. 
ENGLEMANN, T. W. 1893 Uber den Ursprung der Muskelkraft. W. Engle- 
mann, Leipzig (cited from Heidenhain). 
HempEnHAIN, M. 1911 Plasma und Zelle. G. Fischer, Jena. 
HoimcGren, E. 1907 Ueber die Sarkoplasmakorner quergestreifter Muskel- 
fasern. Anat. Anz., Bd. 31, S. 609. 
JorpaN, H. E. 1916 The microscopic structure of the leg muscle of the 
sea-spider, Anoplodactylus lentus. Anat. Rec., vol. 10, p. 493. 
1917. The microscopic structure of striped muscle in Limulus. Pub. 
251, Carnegie Institution of Washington, pp. 273-290. 
1919 Studies on striped muscle structure. IV. Intercalated discs in 
voluntary striped muscle. Anat. Rec., vol. 16, p. 203. 
1919 Studies on striped muscle structure. V. The comparative his- 
tology of the leg and wing muscle of the mantis, with special reference 
to the N-disc and the sarcosomes. Am. Jour. Anat., vol. 16, p. 217. 
JorpAN, H. E., anp Banks, J. B. 1917 A study of the intercalated discs 
of the heart of the beef. Am. Jour. Anat., vol. 22, p. 285. 
Macauium, A. B. 1905 On the distribution of potassium in animal and 
vegetable cells. Jour. Physiol., vol. 32, p. 95. 
McDovaati, W. 1897 On the structure of cross striated muscle and a 
suggestion as to the nature of its contraction. Jour. Anat. and 
Physiol., vol. 31, p. 410. 
1898 A theory of muscular contraction. Am. Jour. Anat. and 
Physiol., vol. 32, p. 187. 
Mercs, E. B. 1908 The structure of the element of cross-striated muscle, 
and the changes of form which it undergoes during contraction. 
Zeitschrift fiir Allgemeine Physiologie, Bd. 8, S. 81. 
Menten, Mavup L. 1908 The distribution of fat, chlorides, phosphates, 
potassium and iron in striated muscle. Trans. Canadian Institute, 
vol. 8, p. 403. 
MerkeL, F. 1872 Der quergestreifte Muskel. I. Das primitive Muskel- 
element der Arthropoden. Arch. f. mikr. Anat., Bd. 8, S. 244. 
1873 Der quergestreifte Muskel. II. Der Contractions-vorgang im 
polarisierten Lichte. Schultze’s Archiv, Bd. 9, S. 293. 
Prenant, A., Bourn, P., et Maituarp, L. 1904 Traité d’Histologie, T. 1, 
p. 440. 
