EFFECTS OF MAMMARY EXTRACT 99 



action than the extract of virgin mammae in regard to Effects of 

 the properties mentioned. If so, the pressor effect ^tracts!* 7 

 obtained might be explained by the fact that such 

 breasts must be extremely rich in calcium salts, which 

 themselves have a well-marked pressor action on 

 unstriped muscle-fibres. 



