472 THE LACHRYMAL GLANDS, BY FEANZ BOLL. 



5. THE NERVES. The nerves of the lachrymal glands run 

 constantly by the side of the branches of the bloodvessels 

 and the excretory ducts. They are, even in the trunk of the 

 lachrymal nerve, for the most part non-medullated. I have 

 never been able to follow them quite satisfactorily beyond 

 the salivary tubes, which they constantly accompany, and I can 

 state nothing with certainty in regard to their termination or 

 their anatomical relations to the secretory elements. No 

 nerves exist in the interior of the parenchymatous bodies in 

 the interstices between the alveoli; and if they are really 

 in direct connection with the secretory epithelial cells, they 

 must run to the alveoli with the finest excretory ducts.* 



6. LITERATURE. The histological literature of the lachrymal 

 glands is identical with that of the acinous glands. Passing 

 over the older works, I subjoin the complete literature since 

 the important researches of Giannuzzi on this subject, which 

 were made in Ludwig's laboratory, and the coincidentally 

 made, and not less important, works of Pfliiger. 



LITERATURE. 



G. GIANNUZZI, Von den Folgen des beschleunigten Blutstroms fiir die 

 Absonderung des Speichels. (On the consequences of accele- 

 ration of the blood current upon the secretion of the saliva.) 

 Sachsische academische Sitzungsber., mathem. phys. Cl., 27 

 Nov. 1865. 



E. F. W. PFLUGEK, Die Endigungen der Absonderungsnerven in den 

 Speicheldriisen. (The termination of the secretory nerves in 

 salivary glands.) Bonn, 1866. 



E. F. W. PFLUGEE, Die Endigungen der Absonderungsnerven in den 

 Speicheldriisen und die Entwickelung der Epithelien. (The 

 termination of the secretory nerves in the salivary glands, and 

 the mode of development of epithelial cells.) SCHULTZE'S Archiv, 

 Band v., 193. 



* The appearances which I have indicated in my first work, where non- 

 medullated nerves run to the blunt end of the alveoli, can only occur at 

 the margin of the parenchymatous body opposite the connective-tissue 

 septa. 



