The bilingual education of adults in correctional institutions is discussed. The program specifically described is a bilingual/ESL (English as a second language) program for Puerto Rican adults in a Connecticut correctional center. The study has two sections: (1) the Puerto Rican adult in a penal institution; an explanation of his needs and an attempt to decide what curriculum, methods and materials to use and where to find them; and (2) the Puerto Rican adult in a penal institution in Connecticut: an examination of the conflicts and impediments in learning English as a second language. The following topics are discussed within these two main sections: the general education level and some statistics on the Puerto Rican adults in Hartford and Bridgeport; the school district of the Department of Correction; typology of bilingual students; bilingual/bicultural curriculum as therapy; evaluative procedures; obstacles to learning; and Spolsky's educational factors. It is hoped that the program described may be a force of socialization and a means of acculturation for the persons involved. (AMH)