title: An improved culture flask for photographic and visual observation of living cell cultures.
abstract: A new type of culture vessel is described, identical in shape to the classic T15 vessel but with the advantage of optical surfaces that allow photography at medium resolution (with numerical apertures of 0-60-1-0). Details of flask manufacture are given.
mesh_terms: D002478:Cells, Cultured; D046508:Culture Techniques / Q000295:instrumentation*; D010784:Photomicrography