1767 September 21 (Monday). Am somewhat employed further about Mr. Martyn’s Books. A difficulty arises about prizing 4 Volumes of Dr. Mantons Works. ‘Tis uncertain whether they were all Mr. Martyns; if they were, whether the 5th did not likewise. This was to be enquired into because of the Difference there must be in the Price if it is a broken sett. I returned home and din’d here. Caleb Winch dined also. We settled and I payd him in full. Mr. Nathan Maynard Constable, came presently after Caleb was gone and was displeased because I had not sent him word of his being here, but I had unhappily forgot it (though I had told him I would if I could) till he had been some time here and then when it came into my Mind I could not perswade him to tarry, because he was to go to Boston tonight — but before he went I obliged him to promise before Mrs. P________ and me, that he would pay his Rates — which he did. I visited Miss Love Whitney and prayed with her.