It is believed also that they secrete bactericidal substances and ferments which bring about the liquefaction of the fibrin and the damaged tissues - histolysis - and thus assist the process of absorption.
Radium is analgesic and bactericidal in its action.
Inhalations of thorium emanations produced from thorium nitrate through a wash-bottle inhaler are said to have a bactericidal action in diseases of the lungs.
The lower area of bactericidal action extends much farther to the right, because the quartz allows more ultra-violet rays to pass than does glass.
The observations Bacteria g 5' of Downes and Blunt in 1877 left it uncertain whether the bactericidal effects in broth cultures exposed to solar rays were due to thermal action or not.
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