MICHAEL W. DAVIDSON / SCIENCE PHOTO LIBRARY MICHAEL W. DAVIDSON / SCIENCE PHOTO LIBRARY
DDT. Polarised light micrograph of crystals of DDT (dichlorodiphenyltrichloroethane). DDT is a pesticide which was widely used in the 1940s & 1950s. It was later found to be dangerous and restrictions are now placed on its use. Magnification: unknown.
Model release not required. Property release not required.