Psychro for the HP48 SX/GX series calculators is a program for doing 
psychrometric calculations. Both SI and English units are supported.
Psychro 1.2 is distributed as a library with ID number 1766, 
approximate size 8 Kbytes. Psychro is "shareware", $15.00 U.S. to 
register. Send check to James Weisbin <jweisbin@compuserve.com>