Which preposition to use with inflammatory

to Occurrences 1%

Lord Stanhope, in his "Life of Pitt," i. 273, quotes a description of Grattan's speech as "a display of perhaps the most beautiful eloquence ever heard, but seditious and inflammatory to a degree hardly credible;" and he so far prevailed, that in the Irish House of Commons the resolutions were only carried by a majority of twenty-nineone so small, that the Duke of Rutland, the Lord-Lieutenant, felt it safer to withdraw them.]

Which preposition to use with  inflammatory