INTERCALATED DISCS OF THE HEART OF BEEF 329 



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(15) King, M. R. 1916 The sinoventricular system as demonstrated by the 



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(18) Mall, F. P. 1911 On the muscular architecture of the ventricles of the 



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(19) Marceau, F. 1904 Recherches sur la structure et le developpement 



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(20) Palczewska, Irene von 1910 Ueber die Struktur des menschlichen 



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(22) Tawara, S. 1906 Das Reizleitungssystem des Saugetierherzens. Fischer, 



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(23) Werner, Marie 1910 Besteht die Herzmuskulatur der Saugetiere aus 



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DESCRIPTION OF PLATES 



The illustrations were made with the aid of the Bausch and Lomb camera 

 lucida. Unless otherwise specified all figures are of tissue fixed in the alcohol- 

 nitric-acid mixture and stained in hemalum according to Zimmermann's technic, 

 and magnified 1500 diameters. The original magnification is reduced one-third 

 in reproduction. 



The drawings were made with water-proof India ink of various dilutions. 

 As such they represent quite faithfully the appearance of sections stained with 

 iron-hematoxylip. If shades of blue are substituted for the black and grays 

 in the illustrations the appearance of the hemalum-stained sections is closely 

 imitated. 



THE AMERICAN JOURNAL OF ANATOMY, VoL. 22, NO. 2 



