Seven different fluorophosphate glass compositions were doped with cerium and terbium. Initial results indicated that these glasses, as they stood, had only a limited ability to dissolve the rare earth ions. A series of melt modifications was attempted to improve the solubility. (MHR)

The physical vulnerability system for evaluating probable damage from a nuclear blast has received wide acceptance because it is a simple but general system applicable to a wide variety of target classes. A series of hand-calculator programs using this system that permit equally accurate but faster calculations than the conventional handbook method are described. The programs cover various interrelationships among peak overpressures, peak dynamic pressures, vulnerability numbers, weapons radii, and kill probability. The use of a programmable calculator greatly reduces the chance of operator error by eliminating individual hand calculations and graphical determinations of parameter values.

Annual report submitted by the Boy Scouts of America to Congress describing highlights from 1975, activities, membership, finances, organizational leadership, and other information about scouting programs.