Two new NAEG projects were started and completed during the period. The first was the Large Animal Grazing Study which required the analyses of large cattle tissue and bone samples for pun3? Am@ 41 | , total U, and is U. Special procedures were developed for the ashing, dissolution, and analyses of these samples. The second project involved the simulated radiochemical analysis of large cattle tissue and bone samples in the NAEG hot sample facility at NRDS, ties. Jackass Flats, Nevada, adjacent to Nevada Test Site facili- The purpose of building this facility was to have available a remote area where large mammal tissue and bone samples, containing high-level radioactivity transuranics, could be prepared for radiochemistry or instrument analysis. In the simulated analysis, tissue and bone samples were spiked with Co®? and ashed and/or dissolved with special procedures. Work areas were monitored after each step of the procedure to check for spread of contamination. showed no such occurrence. Results A report of the simulated test is being prepared. A few minor projects such as preparation of vegetation solutions for shipment to other laboratories, analyses of calibration samples, preparation of dry and ash weight tables of vegetation and small mammals, consulting on the NAEG hot sample facility's construction and outfitting, a computer program for data output of the Grazing Mammal project, and installation of two new hoods and four new alpha spectrometer systems at LFE were implemented and in most cases com- pleted during the period. A paper describing the details of the new and improved ashing, dissolution, and analysis procedures is in preparation. Highlights of the paper include a new method of dissolving large tissue samples which bypasses the dry ashing step, a method for separating Am-Cm in any matrix using HDEHP in toluene and DDCP in 12N HNO, , 50 cation column using EtOH-HCl elution. 160 and a Dowex-