_William Riddal_ swore that he was Steward and Tenant to the said _Warner_ for above 20 Years, in all which time the said _Warner_ constantly sold to the Potters in _London_ considerable quantities of the same sort of clay now in dispute, for the making of White and Painted Earthen-Ware: That he never knew or heard that the least Parcel of it was ever sold as Fullers-Earth, or put to any other Use than making Earthen-Ware, excepting some small quantities yearly in the Neighbourhood for daubing of Houses, which may be alledged as a good Argument that the said Clay is not of the nature of Fullers-Earth; for, whereas this makes the best Clay Wall in _England_, if it were of the nature of Fullers-Earth, upon the first wet Weather it would all fall to the Ground: He likewise further deposed, That the first time the said _Warner_ shipt the said Clay for _Holland_, it was seized by the _Custom-house_ Officers as Fullers-Earth; but upon Tryal of it, they were convinced of their Error, and cleared the same. _William Knight_, _Thomas Harper_, _Henry de Wilde_, _John Robins_, _Moses Johnson_ are all Potters in _London_, and swore that they had all seen the said _Warner’s_ Clay, which was seized, that it was really Potter’s Clay, and of the same sort which they had constantly bought of him, some for above 25 Years, others ever since they were Traders, that it is of a quite different nature from Fullers Earth; for the said _Warner’s_ Clay tho’ never so often dissolved in Water, may be brought into a Body again, and will work, like Wax, into any shape, whereas Fullers Earth being once dissolved is never to be got into any Body, but when it is dry crumbles like Sand, and all the art of Man can never make a Pot of it. _Hen. de Wilde_, one of the said Potters, farther deposed, That about five Years since he shipt some of the said _Warner’s_ Clay for _Pensilvania_, where his Son had set up a Pot-House, that the Custom-House Officers did then likewise seize it as Fullers-Earth, but upon Trial of it found they were mistaken, and cleared the same. _Benjamin Furly_, Merchant in _Rotterdam_, to whom the said _Warner_ consigned his Clay, _John Sonman_, Servant to the said _Furly_, were, by virtue of a Commission from the Court of _Exchequer_, examined upon Oath (by Commissioners appointed for that purpose), to several Interrogatories, and their Depositions being read in Court, did plainly prove that all the said _Warner’s_ Clay which was sent for _Holland_ was really sold to Potters for making of Earthen-Ware; That they never heard, nor do believe that any part of it was ever used for the Fulling Trade, or is any way proper for it; that they sold the said _Warner’s_ Clay from 25 to 30 Guilders a Last, when they could buy Fullers-Earth at 7 Guilders a Last.