A brief account of microscopical observations made on the particles contained in the pollen of plants


 * Brown, Robert (1828), "A brief account of microscopical observations made on the particles contained in the pollen of plants" in Philosophical Magazine 4:161-173.
 * "A brief account of microscopical observations made on the particles contained in the pollen of plants", including "Additional remarks on active molecules.", in Bennett, John Joseph (ed.) (1866) The miscellaneous botanical works of Robert Brown, Esq., D.C.L., F.R.S. 1:433–461.