the Thoreau Log. 11 July 1853. Concord, Mass. Thoreau writes in his journal: Centaurea nigra, some time, Union Turnpike, against E. Wood’s, low ground, and Ludwigia alternifolia, apparently just begun, at entrance to poke-logan near Assabet Bathing-Place . . . (Journal, 5:314) Log Index Log Pages Select... 1817-1832183318341835183618371838183918401841184218431844184518461847184818491850185118521853185418551856185718581859186018611862