CHAPTER XXIII. 



Characteristics op Abortion Extraordinary. 

 // Results from Relaxaiio/i of the Udder-Supply Arteries. 



Abortion from ordinary causes, such as fright, worrying, 

 over-strain, hurts, great fatigue, etc., may take place at 

 any time ; but in such cases tliere are no marks, or evi- 

 dence of starvation in the embryo, nor in tlie placental 

 vessels. But in cases of abortion from udder-supply ar- 

 tery engorgement, the evidences of starvation are clear, 

 in the emaciated condition of the embryos, and in the 

 partly emptied and degenerated condition of the placental 

 vessels. This evidence, and its authoritive conlrrmation 

 by Dr. J. C. Dalton, who states that this disorder does 

 not result from any of the ordinary causes of abortion in 

 man, or in farm animals, excludes the old time ordinary 

 causes of abortion from consideration. And we have ac- 

 cordingly designated this disorder "extraordinary," as it 

 evidently is, because it results from the anomalous and 

 extraordinary engorgement of certain arteries, in distinc- 

 tion from other parts or organs.* 



The strong evidences of starvation, already shown as 

 the cause of embryo death, are amply confirmed by the 

 failure of increase in blood supply to the embryos at certain 

 stages of their growth, which has already been explained 

 in Chapter XXI. 



Dr. Dalton also affirmsf that this modern kind of abor- 



* See page 193— Note, 



t See Ilia report published by State Agtioultm'al Sooioty, at Albany, N, T, 



