the Thoreau Log. 16 July 1850. Concord, Mass. Thoreau writes in his journal:   I have not yet been able to collect half a thimbleful of the pollen of the pine on Walden, abundant as it was last summer (Journal, 2:40-41). Log Index Log Pages Select... 1817-1832183318341835183618371838183918401841184218431844184518461847184818491850185118521853185418551856185718581859186018611862