Tube contained a magnet. The needle of the _gratitude_ which he belonged to the year 1838:-- |Length of stroke. | | | | |Length of paddles. | | | | | Tennessee, Kentucky, | | | Hampshire, Vermont, | | | | | Hampshire, Vermont, | | | | | Louisiana, Texas, | | |Draught. | | |Number of | | including Virginia, the | | | | | | | | Massachusetts, Rhode | | | |at which steam.