| Description | [He has asked Mr De Luc for Watt’s letter to Priestley. If he receives it in time he will read it to the Royal Society]. 'I take it for granted that you and I are on the same side of the question respecting the slave trade. I have joined my brethren here in a petition from the pottery for the abolition of it, as I do not like a half measure in this black business']. |