On sequences generic in the sense of Prikry

I establish here a criterion for a sequence of ordinals to be generic over a transitive model of ZFC with respect to a notation of forcing first considered by Prikry in his Doctoral dissertation [2]. In Section 0 I review some notation, in Section 1 I list some facts about measurable cardinals, and in Section 2, after giving Prikry's result, I state and prove mine. Theorem 2.2 was proved during my brief stay at Monash University in Melbourne in June 1969. I thank Professor Crossley of that organisation for his hospitality. The paper was written in my sister's house in Pakistan.