BIBLIOGRAPHY. 161 



rausch injected from the jugular vein ; I [Dr. Bigelow] inflated 

 the tissue locally, as if it were in the penis." 



Vasa vasorum, lympJiatics, and nerves. Nutrient ves- 

 sels are found in the walls of all the larger arteries and veins, 

 where they occupy the adventitia. Sometimes they are seen 

 to dip down into the outermost portions of the media. Lym- 

 pJiatics occur as clefts or spaces between the various tissues of 

 all arterial and venous trunks. Some vessels are ensheathed 

 by a lymphatic membrane, which is sometimes furnished with 

 a lining endothelium. Such structures are called perivascular, 

 or, better, circumvascular spaces. They may be found in 

 connection with the omental and the mesenteric vessels, also 

 the splenic and the hepatic arteries, as well as certain menin- 

 geal vessels of the brain and cord. 



Nerve-fibres are seen to pass to many of the blood-vessels. 

 They enter the adventitia, and at its internal boundary sud- 

 denly appear to divide into numerous filaments, the ultimate 

 distribution of which has not hitherto been satisfactorily ascer- 

 tained. They seem to terminate in the muscle-cells of the 

 media. Beale considers the presence of ganglion-cells in the 

 vascular nerves as of constant occurrence. The author cannot 

 admit the truth of this general statement, having discovered 

 such cells in only exceptional instances. There is no discerni- 

 ble difference of structure between the vaso-constrictor and the 

 vaso-dilator nerve-fibres. 



BIBLIOGRAPHY. 



In addition to the well-known standard treatises by Bichat, Kolliker, Henle, 

 Sappey, Krause, Frey, Leydig, Teichmann, Strieker, Klein, Ranvier, Donders, Vier- 

 ordt, Luschka, Pouchet et Tourneux, the following may be consulted : 

 LUDWIG. De arteriarum tunicis. Lipsiae, 1739. 

 RAUSCHEL. De arteriarum et venarum structura. Vratisl. , 1836. 

 ROBIN. Sur la structure des arteres. Gompt. rend. 1847. 

 SCHULTZE. De art. struct. Gryph. , 1850. 



REMAK. Hist. Bemerk. ueber d. Blutgefasswande. Miiller's Arch. , p. 96. 1850. 

 SEGOND. Syst. capillaire sanguin. Thse. Paris, 1853. 

 REMAK. Entwickelung d. Wirbelthiere. Berlin, 1855. 

 REMAK. Klappend. Venen. Deut. Klinik. 1856. 

 HACKEL. Miiller'a Arch. 1857. 

 LUSCHKA. Virch. Arch. XVIII. , p. 106. 1860. 

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