igoo-i.] 



Observations on Blood Pressure. 



233 



13 



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Tracing XLIX. — 9/26. — Dogr poisoned with Chloroform. Respiration had already stopped. 

 Atropine injected at 13. No artificial respiration used. 



The pulse soon became fast and respiration commenced. No other 

 means of resuscitation were employed. 



My experience would lead me to the following conclusions : 



First, the previous use of atropine lessens the tendency to death 

 from chloroform poisoning in dogs. Theoretically also one might 

 assume that from its powerful stimulating effect on the circulation it 

 would, especially if combined with morphia, tend to lessen the chance of 

 syncope occurring during, but not necessarily due to, chloroform 

 administration. 



Second, that when, during the administration of chloroform, danger 

 has occurred, either in the form of syncope or of respiratory failure, 

 atropine in moderate doses (say tto grain) would tend to stimulate 

 both the circulation and the respiration, and hence would be a valuable 

 adjunct to other means of saving life in such emergencies. 



