James Rumsey's machinery for the Steam-boat -- That he, this deponent, did work at the said James Rumsey's machinery -- That it was begun in the spring of the year 1786, and that no part of said machinery was begun before the time above mentioned by the said Zimmers, to the best of his knowledge -- and further that the said machinery was begun and finished in a shop adjoining Frederick Tombough's smith-shop (which said Tombough w^as, as the deponent has been informed, in partnership in the smith's business at said time with said Zimmers) in which said Matthias Zimmers had his copper-smith's fires for brazing &c. and further this deponent saith not.

Sworn before me

JOHN MOALE. The following certificate proves that M''. Rumsey's machinery w^as made by M^. Zimmers, in Frederick Town in the spring of 1786, their being but two Copper-smiths in Frederick Town, viz.

No. 20.

This may certify, that I the subscriber, copper-smith have resided in this town about three years, during which time there has no copper-smiths resided in the town except M^". Matthias Zimmers and myself and that I was knowing to M"". Zimmers making copper works for M^. Rumsey's Steam boat, and am of opinion it was late in the spring or summer before said Rumsey took said works from M"". Zimmers in the year 1786. As witness my hand, 29th. April 1788, at Frederick-town, Maryland.

JOSHUA MINSHALL.

The foregoing testimonies I presume, will carry full conviction that Mr. Rumsey has shifted his dates, and has got two of his workmen to swear to it -- for Messrs. Barns and Morrow, if they had consulted their accounts, must have found that they had made a lapse of a whole year at least, and that the December, 1785, which they speak of must have been December, 1786. -- The circumstance of being stopped by the ice proves it to have been in the winter, and therefore must inevitably have been in the winter