ACTIOX OX CIRCULATIOX AND rvESPiRATIOX. 



Ili5 



Exp. X. — April 5. — A large dog was operated on. No chloroform wa* 

 given, as after I had seen an operation conducted on a dog without chloroform, 

 I concluded that the uneasiness they suffered while getting it was worse tlinn. 

 they seemed to experience from the operation. The first incision was made 

 about 11.38, cleaned a part of jugular vein and carotid artery, and inserted the 

 hsemadynamometer. The mean tube of the double instrument having been, 

 partly choked, and not working well, I had another made, but not being drawn 

 to a fine enougli bore, the mercury oscillated too mucli in it. 



