I had some book or other annually to write in behalf of the cause.

In this time I had travelled more than thirty-five thousand miles in search of evidence, and a great part of these journeys in the night.

All this time my mind had been on the stretch.
It had been bent too to this one subject; for I had not even leisure to attend to my own concerns.

The various instances of barbarity, which had come successively to my knowledge within this period, had vexed, harassed, and afflicted it.

The wound, which these had produced, was rendered still deeper by those cruel disappointments before related, which arose from the reiterated refusal of persons to give their testimony, after I had travelled hundreds of miles in quest of them.