A pleasing land of drowsy head it was, Of dreams that wave before the half-shut eye; And of gay castles in the clouds that pass, Forever flushing round a summer sky. CASTLE OF INDOLENCE. IN the bosom of one of those spacious coves which indent the eastern shore of the Hudson, at that broad expansion of the river denominated by the ancient Dutch navigators the Tappan Zee, and where they always prudently shortened sail and implored the protection of St. Nicholas when they crossed, there lies a small market town or rural port, which by some is called Greensburgh, but which is more generally and properly known by the name of Tarry Town. This name was given, we are told, in former days, by the good housewives of the adjacent country, from the inveterate propensity of their husbands to linger a…