In addition to the scientific group, Coast Guard personnel were used as laboratory technicians to assist in the sampling, processing, and counting. Radiochemical Laboratory The Radiochemical Laboratory was set up in the weather -balloon shelter on the observation deck of the ship and counting equipment was placed in the weather office immediately adjoining the laboratory. Ashing was carried out in a muffle furnace set up on the starboard catwalk where natural ventilation usually kept smoke and fumes from being objectionable. These three units are shown in Figures 1, 2, and 3. Figure 1. Radiochemical laboratory in the weather balloon shelter on board the TANEY. Figure 2, Counting equipment. Figure 3. Muffle furnace. y ie hoe myivy rn on ne *