The Antoine Lacassagne collection houses records of commissions, congresses, conferences, and symposiums, lectures, correspondence, records of experiments, experimental notebooks, lessons, and reprints of publications by Professor Lacassagne and others documenting their work in the field of radiobiology. A significant portion of the collection contains material showing Professor Lacassagne's research into cancers of different parts of the body and groups of papers concerning various experiments Lacassagne conducted to study the effects of atomic radiation in the treatment of cancer.