toured Europe with a remarkable performance along the same lines as Joyce's. Dr. Desaguliers saw this man and has this to say of him:
After having seen him once, I guessed at his manner of imposing on the multitude; and being resolved to be fully satisfied in the matter, I took four very curious persons with me to see him again, viz. the Lord Marquis of Tullibardine, Dr. Alexander Stuart, Dr. Pringle, and a mechanical workman, who used to assist me in my courses of experiments. We placed ourselves in such a manner round the operator, as to be able to observe nicely all that he did, and found it so practicable that we performed several of his feats that evening by ourselves, and afterwards I did most of the rest as soon as I had a frame made to fit in to draw, and another to stand in and lift great weights, together with a proper girdle and hooks.
Dr. Desaguliers illustrates Van Eckenberg's methods in a very exhaustive set of notes and plates, which are too technical and voluminous to repeat here, but I will quote sufficiently
