AMAS 1.67d is a bug fix.  

Work by Jim Procter: rearranged constants 
for maximums so they only get defined once, in
one file (includes.h). Various bad memory accesses were also fixed
(files written to after being closed and printing values from
0x0000000).

Not sure what happened to 1.67c...

GJB May 2005

AMAS 1.67b is a bug fix.  Was core dumping under linux
due to calling fclose twice in simdif.c

GJB 18 August 2000


AMAS 1.67a is a maintenance release of amas 1.67.
It only includes minor changes to the Author's
affiliations.

GJB 21 March 2000