OK, I just got back from the Research Library.  The solubility of AgCl with 
varying
amounts of Cl ions is in two references.

1. Forbes, Cole J. Am. Chem. Soc., 1921, 43, 2492. (This is volume II of that 
years
issues).
2. Laitinen "Chemical Analysis", 1975, second edition, pages 135-137.

The attached graph of the solubility is from the second reference.  The graph 
that is
most applicable to our concentrations in the stomach and blood is A, the left 
hand one.

Marshall

<<inline: AGCL.GIF>>