WaterC users::::;
	Water {all versions} are released as Freeware 1992, 1993.
It may not be re-released, published, or modified without express written consent of at least two of three authors (Demsey, Norton, Johnson - see below for contact addresses). 

To unpack:
  % zcat WaterC.tar.Z | tar xvf -
 
 This will generate  ./WaterC with the following files:
Bounds2.ps    (for viewing with NeXTStep's Preview)
Bounds.ps     (plain postscript format)
Help.txt
Makefile
README  (this file)
w.c
w.h
wconfig.h
wconst.c
wengine.c
wfront.c
winclude.h
wmenu.c
wstruct.h

then:::
 **Please edit the wconfig.h file with your favorite editor.  Modification
is simple and documented at the top of wconfig.h; editing is done for system
specific code modifications.**

 % make -f water.make

This will generate a version of water on your compiler.

	Water is a  program to calculate dependent state, thermodynamic, transport, and electrostatic properties of liquid and vapor in the H2O-System as a function of user-specified state conditions and unit and triple point conventions. It covers a range in temperature from circa -20 to 2250 C, and a range in pressure from circa 0.01 to 30000 bars; at pressures less than about 220 bars the phases of ice I through VII bound the  retrieval region.

	The valid parameter boundaries that Water accepts fall within the grey bounded area below:
										[Graphic by Dr. Denis Norton]
[Graphic may be located in postscript format in "Bounds.ps" included in
package.]	
										
	Boundary points in the H2O-System:	
				T degC		P bars
Critical End Point		373.917		220.46
	Triple Points:
ice-I:vapor:liquid		0.01		0.006113
ice-I:liquid:ice-III		-20.0		2035
ice-I:ice-II:ice-III		-34.7		2100
ice-II:ice-III:ice-V		-24.3		3397
ice-III:ice-V:liquid		-17.0		3417
ice-V:ice-VI:liquid		0.16		6175
ice-VI:ice-VII:liquid		81.6		21680
ice-VII:ice-VIII:liquid	(see Vonnegut,Kurt, 1963. Cats Cradle)


	Water permits the curious user to the explore temperature, pressure and density space and retrieve corresponding property values or obtain incremental values of user selected properties.
 
	This equation of state has a critical point  at P=220 bars and T = 374.15 C; a region where vigorous activity occurs within the earth's crust.

	The computing engine, NeXTstep frontend, and C-frontend materials for Water were written in C by M. Loki Demsey; Dr. Denis Norton also wrote some C-frontend material.  The engine was optimized and rewritten from an original FORTRAN engine.  James Johnson and Dr. Denis Norton wrote the code and added pieces of pre-written code from Haar,Gallagher,Kell; NBS/NRC Steam Tables, Hemisphere Publishing Corp,1984, and Levelt, Sengers, et al., 1983.  
	
	Any questions whatsoever should be directed to:
Where to find us:

M. Loki Demsey		Quaeler Software
	loki@Goat.Geo.Arizona.EDU  (NeXT mail)

Dr. Denis Norton                University of Arizona , Geology Department
	denis@Goat.Geo.Arizona.EDU (NeXT mail)
			or  denis@Quartz.Tucson.Az.US  (NeXT mail)
	Post:
			Gould-Simpson Building,  Room 515
			University of Arizona
			Tucson, AZ  85721
			(602) 621-6009
Dr. James Johnson	Lawrence Livermore National Laboratories
	johnson@s05.es.Llnl.GOV (never NeXT mail)
	


Bibliography:
    Code references:
	Haar,Gallagher,Kell; NBS/NRC Steam Tables, Hemisphere Publishing Corp,1984
	Levelt, Sengers, et al., 1983
    Original FORTRAN Project references:
	Johnson; Subroutine H2O88, Theoretical Geochemistry Software Library, 1988
	Johnson, Norton; Critical Phenomena in Hydrothermal..., Am J of Science,June 1991
    Reference State reference:
	Helgeson,Kirkham; Theoretical Prediction of Thermodynamic Behavior...,
			Am J of Science, December, 1974
	
