1. J. P. Hanig andJ. Seifter, Fedn Proc.27, 651 (1968).
2. J. P. Hanig, Doctors Dissertation, New York Medical College, May, 1968.
3. J. P. Hanig, Dissertation Abstracts International, 31, 2162 (1970).
4. N. Clymer andJ. Seifter, J. Pharmac. exp. Ther.89, 149 (1947).
5. H. Waelsch,Biochemistry of the Development of the Nerous System (Academic Press, New York 1955), p. 187.