Having determined to return to Washington city, I wrote to the innkeeper of the Mansion house hotel at Philadelphia, to have my room warm for me at 11 o’clock, P. M. and entering the evening cars at Jersey city in the evening, we were carried across the State of New Jersey, and crossing the Delaware with some difficulty, on account of the ice in the river, I arrived at Philadelphia, and was in a good warm bed, in a warm room, before eleven o’clock at night, at Horter’s Mansion house, corner of 11th and Market streets, Philadelphia.--The ride across the State of New Jersey, in a bright moonlight night, was as agreeable as it could be, we being able to see each town as we passed through it. The cars were well warmed by stoves; we were not too much crowded to be comfortable, and we had agreeable company enough to render our journey pleasant. Lodging at Philadelphia, next morning after breakfast I entered the cars for Baltimore, and arrived at Washington city exactly twenty-five hours after I had left New York. This last day’s ride was perhaps on the second day of February. The different degrees of temperature in the atmosphere during the month of January, was seen in the thickness of the ice in the North, the Delaware, in the Susquehanna and the Potomac rivers. In the North river the ice was fourteen inches in thickness, in the Delaware ten inches, and eight inches in the Susquehanna, but not more than six inches in the Potomac. The city of New York, located on an island that lies high, and is exposed to every breath of air that moves in any direction over the land or the water, is colder than its latitude would seem to indicate. The current in the river and in the Sound, owing to a tide of from seven to eleven feet in height, rising and falling every few hours, prevents any very great inconvenience to ships, either entering into or leaving the harbor in the coldest winter weather. I was no more fatigued by my journey, than if I had been sitting in my room at the Broadstreet hotel. The passage money between Washington city and New York, is only ten dollars and fifty cents, yet, for handling trunks, for refreshments on the way, and tavern bills, added to car fare, we may safely say that it costs the passenger fifteen dollars between Washington city and New York.