Mr.Wilberforce saw the absolute necessity of it also; and had prepared a number of questions, with great ingenuity, to be put to such persons, as might have information to communicate.

These I added to those in the tables, which have been already mentioned; and they made together a valuable collection on the subject.
This tour was the most vexatious of any I had yet undertaken; many still refused to come forward to be examined, and some on the most frivolous pretences; so that I was disgusted, as I journeyed on, to find how little men were disposed to make sacrifices for so great a cause.

In one part of it I went over nearly two thousand miles, receiving repeated refusals.

I had not secured one witness within this distance.

This was truly disheartening.