From the Montreal Herald.
We have much pleasure in publishing the following letter from Capt. Fowell to Mr. Baird, the inventor and patentee of the sweeping paddle wheels for steam vessels: -
Her Majesty's Steam-Vessel, Cherokee
Kingston, Jan. 15, 1847.
Sir, - Since Her Majesty' s Steam-Vessel Mohawk has been fitted with sweeping paddle wheels she has been twice out on short trips, and as the alteration proved highly satisfactory, I feel that it is but justice to you to inform you of it. After the first trial I wrote to my Lords of the Admiralty reporting favourably of the wheels - and I am happy to say that, on her going out a second time, my first opinion was confirmed; on that occasion she left the Dock yard in a gale of wind, to go about fifteen miles up the Lake, to assist a vessel in distress, and her performance in the sea way was excellent - the wheels neither producing jar nor vibration, but from their great hold of the water, keeping the vessel very steady.
In my report to the Admiralty, I said: - "The Mohawk is now fitted with Baird's sweeping paddle-wheels, which answer the purpose extremely well. She is much improved in speed, being at present 9 8/10, but when tried again with the engines in a more perfect state, (they had been taken to pieces and recently put up again) I have no doubt of her making 10 5/9, or eleven knots per hour; former speed 9'; number of revolutions per minute, 27; former, 34; diameter of wheel, 16 feet; former 12' 6"; and consumption of coal 9 bushels; former, 11 bushels per hour."
When the vessel is tried again in the spring, I shall then give you a more detailed account of the result.
I am, Sir, your obed't servant,
Commander, and Senior Naval Officer on the Lake.
N.H. Baird, Esq., Civil Engineer, Montreal.