Young Ireland, the Catholic Party and its newspaper organs in Dublin are trying to do all the mischief they can. They are praising the mutineers, and calling upon the Irish to follow their example. I think it will be advisable to call out and embody five thousand more Militia, making twenty thousand in all, and it would be best to bring over to England all the Irish regiments belonging to the Catholic counties, and to send English regiments to Ireland. Some of the Northern Irish regiments would be well left in Ireland. They are chiefly Protestants, and would be delighted to put down the Croppys if they should rise.