Show useful medicine bottle in europe there Is in common a medicine bettio with a glass stopper which has a tiny groove running down ono side of it which corresponds corr esponda to a tiny groove in the neck 0 the bottle these are used tor medicines that must bo dropped such as vornica and str and when abo stopper s turned with tho groove toward that n the bottle the medicine drops out easily and not too rapidly but when the stopper need only be turned back that the two grooved do not coincide and the medicine ie protected from the air thue it ie not necessary to remove the stopper from the from the time it la failed until the medicine hae all been aeed |