Floating Dry Dock (Dry Dock), 1 Oct 1839

Thomas's New Floating Dock at Black Rock -This modern and valuable invention has been recently erected, and for some weeks past in successful operation in Black Rock harbor. Four sections of the work -- there are to be six in all -- are already completed, and a fifth nearly finished. Several steamboats and schooners have been taken up and repaired, and the work is prosecuted with a facility and dispatch unequalled by any other mode of either dock or railway. When the fifth section is added, steamboats of the large, class can be raised with ease in an hour, without strain or accident: and the operation is so cheap and simple, that it must, we think, take precedence of all other works for that purpose. It is well worth visiting as a mere curiosity, and we commend it to all vessel and steamboat owners as deserving their patronage. It has been for some weeks advertised in our paper.
      Buffalo Commercial Advertiser
      Wednesday, October 23, 1839