Abstract :
Summary form only given, as follows. Alex E. Javitz, Consulting Editor, is also Guest Editor for this Special Materials Issue, as he was for the three previous special issues: IEEE Transactions on Parts, Materials and Packaging, vol. PMP-2, no. 4, December 1966; IEEE Transactions on Parts, Materials and Packaging, vol. PMP-1, no. 3, December 1965, and IEEE Transactions on Component Parts, vol. CP-ll, no. 1, March 1964.