PORT HAMILTON, -- In our last we announced the arrival of two schooners at this Port, since which several others have arrived and sailed again with produce on board for Prescott. On Tuesday the Queenston steamer came in with about 30 or 40 passengers, being the first this season. We hope she will continue her trips as usual, and that our Bay will be enlivened by a larger assemblage of steam vessels this year, than in any former one, particularly when the Emigrants begin to arrive, as they are likely to be much more numerous than they have been hitherto. --- Western Mercury.
PORT DOVER. — At a meeting held at Port Dover for the improvement of that harbour, a number of gentlemen have been appointed to receive subscriptions for stock in this promising useful undertaking, more than 200 have already been disposed of, and from the rapid growth of the villages with settlements in its neighborhood, there is no doubt but it will turn out a profitable concern. Four years ago there were not 1000 barrels of flour exported from the Long Point Country, and last season the proprietor of Port Dover Mill alone exported 3000 barrels independent of other large exportations of flour, whiskey, and iron castings, and a variety of articles shipped by different merchants. — Western Mercury.
The Niagara Gleamer of the 14th inst. Says:--
We have been officially informed, that the water will be let into the Welland Canal next Saturday. Lake Erie was clear of ice on the 6th instant, we are told, as far down as Gravelly Bay; it will, probably, be some time before it is navigable to Buffalo. It is said that the Ship Navigation will be completed to Gravelly Bay, by the Canal, in the month of August next; the navigation to the River Detroit will then be shortened from 30 to 40 miles, besides, the advantage of being several weeks earlier than from Buffalo.
OPENING OF NAVIGATION. — Our river and beach has commenced its 'busy hum,' craft of all sizes are getting put in ample requisition for the ensuing season; The Canada steam-boat has commenced her trips between this and York. The Niagara leaves this port, we understand, for the lower parts of the lake about the middle of next week. The Niagara wintered in this river; and was the first steam-boat that commenced plying on our waters this spring; this must be a conclusive proof that we possess facilities over other ports for early navigation. --- Niagara Gleamer, 14th.
NEW STEAM BOAT.
In the list of Steam Boats we find mention is made of one for lake Erie, to be ready by the first of June. She will be of 200 tons burthen, worked by an engine of 70 horse power. She will ply between Chippewa and Sandwich, touching at intermediate British ports, and will receive at Buffalo such Emigrants as come by the way of the Erie Canal. George Jacob, Esq., has commenced building a dock for her accommodation in front of his mansion, as must add greatly to the appearance of our village.
HIGH PRESSURE ENGINES. — A communication on this subject will be found on our first page. An opinion appears to prevail very generally, that Steam Boats propelled by High pressure Engines are far more dangerous than those which are worked by Low pressure Engines. We apprehend however that the opinion is not well founded; and has probably originated from the fact that all the engines which burst, and occasioned so much damage a year or two ago, on the Ohio and Mississippi rivers were high pressure. But when it is known that of the 500 and upward of Steam Boats, which ply on those rivers only two are worked by Low pressure Engines — the fact that they were High pressure Engines only which burst; can hardly be adduced as evidence in favour of the former. Indeed we are informed that, in proportion to the relative numbers used in the Steam Boats in the United States, accidents have been much more numerous from the Low, than from the High pressure Engines; the former being far more liable to collapse. Within the last year or two, an important improvement has been introduced in the manufacture of boilers — formerly the flues and heads were made of cast iron; but now they are made of the very best wrought iron; which, in addition to the other improvements pointed out in the article on our first page, indisputably renders the High pressure Engines entirely safe.
We have made these observations, because the fine new Steam Boat, late the Alciope, but hereafter, we understand to be called the UNITED KINGDOM, is to be propelled by High pressure Engines; and because the prejudice — the altogether unfounded prejudice as we believe — which has been entertained against those engines, might if not removed, operate injuriously for the interests of the Boat in question; which everyone would lament.
The United Kingdom, has been much improved in her internal arrangements; the former gentlemen's cabin, is now the ladies' cabin and a new cabin has been built on deck for gentlemen; it has 16 state rooms, and, altogether 44 berths, and the dining room is 60 feet long. There are two baths on board — one for the ladies and one for gentlemen; which is quite a novel luxury in Canadian Steam Boats. It is already known that she is to be worked by two hundred horse power High pressure Engines, and will necessarily be by far the swiftest Boat on the American lakes. She will be ready, as we are told, on the 1st June.
The new British Boat building at Chippewa for Lake Erie, will also be ready by the 1st June. She is 200 tons burthen — is to be worked by the Engine lately used in the Alciope, the power of which has been increased to 70 horse; which will make the new Boat the fastest on Lake Erie. She will ply between Chippewa and Sandwich, touching at all the intermediate British Ports, and calling at Buffalo to take in Emigrants, &c., for the Western parts of Canada. This Boat is not yet named.
Our attention has been drawn to this subject by an article under the head of "Steam Boats on Lake Ontario" in the last Montreal Gazette, which we have marked for publication in the Courier and which gives a description of the other Boats on Lake Ontario.
The Queenston, Captain Corning, arrived here from Prescott on Monday for the first time this season. She left for Burlington Bay and Niagara yesterday, and will return here tomorrow on her way to Prescott. --- York, U. C. Courier.