Sentence:  The "Ears" are ſometimes troubled with Ulcers; and an Ulcer often happens by the Fall of a malignant Humour; or elſe it is occaſioned by a Wound, ſome Hurt, or ſome <WSD>Ordure</WSD> that is corrupted in the "Ear". 
Meaning of the word marked with <WSD> tags:  Dirt, filth.