EEPARATOKY INFLAMMATION IN ARTERIES. 13 



Yereins russicher Acrzte, 1868, and Arcbiv fiir Klinische 

 Chirurgie, Band II., 18(39) published an exhaustive paper — 

 which we have extensively used in this history — on thrombi 

 after ligature. The author states that — the tiirombus never 

 organizes; the muscle-fibres of the media are never concerned 

 in the organization, and the same may be said of the epithelium ; 

 changes are soon observed in the wall of the vessel, and in 

 all its tissues; growths from the walls encroach upon the 

 lumen of the vessel ; this newly formed tissue, both of the wall 

 and of the lumen, is rich in vessels ; from the arterial wall the 

 vessels go direct into the lumen, which either altogether or in 

 part is closed up ; the development of the vessels progresses 

 at the same time with that of the newly formed tissue ; the 

 circulation of the blood comes from the wall of the vessel 

 itself. 



The author repeated the experiments of Bubnoff, and failed 

 to obtain the same results. He states that in five experiments, 

 colored form-elements were perceivable in the thrombus, but 

 they were small, in large numbers, and without definite form. 

 The}^ somewhat resembled altered red blood-corpuscles. 



Bryant (On the torsion of arteries as a means of arresting 

 hemorrhage. Experiments. Med. Chir. Trans., vol. ii., 18G8, 

 and On torsion of arteries, a description of some models 

 made to illustrate the effects of torsion, Guy's Hosp. Rep., 

 Series TIL, vol. xv.^' believed that in torsion the twist of the 

 cellular coat of an artery, the division and subsequent retrac- 

 tion, incurvation, and adhesion of the middjle coat, and the 

 coagulation of the blood in the vessel as far as the first 

 branch, are the tliree points ui^on which temporary as well 

 as permanent safety depends. In his oi)inion the permanent 

 safety of acupressure rests upon the last point alone, and 

 the temporary effects upon the pressure produced by the needle. 

 Kocher (Ueber die feineren Yorgange bei der Blutstillung 

 durch Acnpressur, Ligatur, und Torsion. Archiv fiir Kli- 



