On the 1st of August 1836, we went on board the fine American Packet Ship, the Gladiator, commanded by THOMAS BRITTON, Esq. and proceeded on our voyage, which proved agreeable. On arriving at New York, we soon reached the house of my good friend and brother-in-law NICHOLAS BERTHOUD, Esq. Leaving my son there, I proceeded almost immediately to Boston, where, under the roof of my generous friend Dr GEORGE C. SHATTUCK, I enjoyed life for a while. My friend Dr GEORGE PARKMAN was absent, and I missed him much. Here, through the kindness of Dr SHATTUCK, I procured two subscribers, and formed acquaintance with THOMAS M. BREWER, Esq., from whom I have received many valuable services, which you will find mentioned in the proper places. Pushing on to Salem I formed some acquaintances there, and procured several subscribers; then returned to Boston, and as fortune would have it, heard of the arrival of THOMAS NUTTALL, Esq., the well-known zoologist, botanist, and mineralogist, who had performed a journey over the Rocky Mountains to the Pacific Ocean, accompanied by our mutual friend JOHN KIRK TOWNSEND, Esq., M. D. Mr NUTTALL generously gave me of his ornithological treasures all that was new, and inscribed in my journal the observations which he had made respecting the habits and distribution of all the new and rare species which were unknown to me. All this information you will find in the different articles to which it refers, and you will allow that while it proves his zeal for the furtherance of science, it manifests the generosity of his noble nature.