CHAP. 57. How to purifie the Air in a Plague time.
Reading edition
Take an ounce of balſum, one ounce of the flower of Sulpher with an ounce of mirrhe powder, all theſe together put thereto as much perno as will make them into a ſtiffe paſt then make it into little cakes then in the time of a peſtilence every day or every other day put one or two of theſe upon a chafing diſh of coals this is good ſaith mine Author to purifie the Air.
FINIS.