“…G on the basis of observations from the mixture H. So, estimation of the mixing distribution G, testing hypotheses about the mixing distribution G, etc., can be meaningfully discussed only if the family of mixing distributions is identifiable. Discussions of identifiability of mixtures may be found in several papers, among others, by Teicher (1961Teicher ( , 1963Teicher ( , 1967, Yakowitz and Spragins (1968), Mohanty (1972), Rennie (1972), Blum and Susarla (1977), AI-Hussaini and Ahmad (1981), Fraser et al (1981), Ahmad and AI-Hussaini (1982) and Kent (1983). Teicher (1963), Yakowitz and Spragins (1968), Mohanty (1972) and AI-Hussaini and Ahmad (1981) used moment generating function, characteristic function and Laplace transforms in Theorem (2) of Teicher (1963), which is stated with weaker assumption by Chandra (1977) as the required transforms.…”