I reserve my description of the journey here, and of this town, for my next letter. LETTER III. JOURNEY TO BOSTON.--BOSTON.--PRISON.--HOSPITAL.--SPRINGFIELD.--ALBANY.--TRENTON FALLS.--JOURNEY TO NIAGARA.--NIAGARA. Delavan House, Albany, Sept. 15th, 1858. I find it at present impossible to keep up my letter to you from day to day, but I am so afraid of arrears accumulating upon me that I shall begin this to-night, though it is late and we are to start early to-morrow. My last letter brought us up to our arrival at Boston, but I have not yet described to you our delightful journey there. We left Newport with our friends, Mr. and Miss Morgan, at two o'clock on the 13th, and embarked in a small steamer, which took us up the Narragansett Bay to the interesting manufacturing town of Providence. We were about two hours on the steamer, and kept pace with the railway cars which were running on the shores parallel to us, and also going to Providence. The shores were very pretty, green and sloping, and dotted with bright and clean white wooden houses and churches. We passed the pretty-looking town of Bristol on our right. The day was lovely, brilliant and cool, with a delightfully bracing wind caused by our own speed through the water. The boat brought us to Providence in time only to walk quickly to the railway, but we had an opportunity of getting a glance at the place. It is one of the oldest towns in America, dating as far back as 1635; but its original importance is much gone off, Boston, which is in some respects more conveniently situated, having carried off much of its trade. It is most beautifully situated on the Narragansett Bay, the upper end of which is quite encircled by the town, the city rising beyond it on a rather abrupt hill. Among the manufactories which still exist here, those for jewellery are very numerous.