Regional enclaves of industry and associations of neighboring universities have devised formalized programs for providing internship experiences for graduate students and residencies for post-doctoral fellows. As an example of the former, seven years' activity of the Summer Engineering Practice School at Argonne National Laboratory is reviewed. Subsequent performance of former students has shown clear evidence of maturation resulting from early contact with working scientists. By-products have been significant industrial contributions by the students, and useful exchanges between industrial and academic scientists associated with the students.