The files
	zic.c zdump.c ialloc.c scheck.c tzfile.h
	private.h tzselect.ksh checktab.awk
come from the tzcode1997g package by Arthur David Olson et.al.

The files
	africa antarctica asia australasia europe
	northamerica southamerica pacificnew etcetera factory
	backward systemv solar87 solar88 solar89
	iso3166.tab zone.tab leapseconds yearistype
come from the tzdata1997i package by Arthur David Olson et.al.

These packages may be found at ftp://elsie.nci.nih.gov/pub/.  Commentary
should be addressed to tz@elsie.nci.nih.gov.