> . a: ~ wk Ge at ig ‘ot Ue 09 OR fed ‘Ae 5 a ‘ ~, - Lrvvelorieticee| 1 division el yu Fig. 4.4 Photomicrograph of Radioactive Aggregate, Shot 2. This sample was collected on a millipore filter mounted on flying bridge of YAG 40, Autoradiograph on NTB Nuclear emulsion surrounds activity. 87