I APOLOGIZE FOR BEING SO PERSISTENT. IN THE PAST I HAVE FOUND IT
DIFFICULT TO OVERCOME REVIEWER'S INERTIA. I AM ALSO GETTING
PRESSURE FROM OUR FRIEND D.C.L. TO DO "SOMETHING USEFUL", THE
BOOK BEING ESSENTIALLY DONE ON MY OWN. OCT 1 SEEMS A GOOD DATE FOR A
NEW VERSION SO THAT THOSE WHO WISH MAY USE IT IN LISP CLASSES.
 NOW THAT I AM COMFORTED TO KNOW THAT MY HAPPY H.S. IS NOT DEEP
IN THE PUSH-DOWN LIST I SHALL STOP IRRITATING YOUR SYSTEM. IT SEEMS
QUITE BRITTLE.
		THANKS , 
			J.A.