Sentence:  But yet the queſtion would be, whether Flyes are not immediately generated of putrefaction, and not thoſe of worms. For experience witneſſeth that there are a certain kinde of Flies which are begotten in the back of the Elm, Turpentine-tree, Wormwood, and ſo perchance in other herbs and plants, without any preceding <WSD>vermiculation</WSD>, or being turned into little worms firſt. 
Meaning of the word marked with <WSD> tags:  The process of being turned into a worm.