What a change in the weather within a few days! The atmosphere is warm, the sun shines, the streets are clean and dry, and though we have no spring, yet we have spring's antecedent, charming dry days, like an English March. The opening of Navigation has caused a general stir in the city; everybody is busy, or appears busy; the market is better supplied; mechanics are bustling about; and all things wear a cheerful aspect. Even the Printers have more work to do than they can well attend to. The British Whig is decidedly in better temper to-day than it was the other morning. Let's get on with this "Walk" of ours, for we are only in the middle of it.
THE COMMERCIAL WHARF.--This wharf will be the Depot and Head Quarters of the mail River Line of Steamers although all the boats won't stop here. The Hon. John Hamilton is the Managing Agent of the Line, and two of his vessels, the New Era and the Ottawa, form part of it. Of the other steamers, the St. Lawrence and Lord Elgin, we have before spoken. The New Era, Capt. Parker, is already engaged in taking the Montreal Mail, as far down as Prescott; the St. Lawrence, Capt. Howard, followed suit, yesterday morning; and the Ottawa, Capt. Putnam, will take her place in the Line some time this week.--Both the New Era and Ottawa have been handsomely refitted with every comfort and convenience that passengers can want; and we need say nothing in praise of Captains Parker and Putnam, who are too well known to the Public to gain aught by our eulogy. Until the ice be out of the St. Lawrence canals, these vessels cannot proceed to Montreal, and probably some days will elapse ere that desideratum be accomplished. Meanwhile, they will go down daily to Prescott or Dickenson's Landing, and take advantage of the Canals the moment they are opened. As the "Through Line" has been abandoned, and some of the vessels sold, the Mail River Line will in a great measure do part of their work; that is, in bringing Freight to Upper Canada. As the Line will consist of four Steamboats instead of Three, one boat will remain over a day in Montreal, looking for cargo; and Freight going above Kingston can be transhipped at Prescott or Kingston into the Lake Mail Steamers. Thus Montreal will possess a Daily Line of Mail Steamers for the Upper Country. As this Freight Business is expected to be large, a special Freight Agent has been engaged to attend to this department. Mr. Hugh McLennan, of Montreal, well known to Upper Canada Shippers, is the gentleman appointed, who, in addition to this particular business, will attend to Commissions and Agency, as formerly.