title: Brown knew particles were smaller than pollen.
authors.forename: David M
authors.initials: DM
authors.lastname: Wilkinson
mesh_terms: D000538:Aluminum Silicates / Q000737:chemistry*; D000077215:Clay; D049672:History, 19th Century; D009038:Motion; D010316:Particle Size; D011058:Pollen / Q000033:anatomy & histology*; D014867:Water
chemical_list: D000538:Aluminum Silicates; D014867:Water; D000077215:Clay