I approve of the Bill drawn on you by Mr. Williams for £12018.17.6 on the publick Service. As I know not how much will be wanted by him to compleat his Orders, I cannot name a Sum within which to limit his Credit. It will be a sufficient Check, if from time to time you mention his Drafts to Mr. Lee or my self before you accept them, for our Approbation. I am, very respectfully Sir, Your most obedient humble Servant