We have an interesting piece on the scientific basis of Graphology by Shaike Landau

This article first appeared in Vanguard graphological journal January-March 2007. Editor: Sheila Lowe

The article may be downloaded by right clicking and choosing "Save As..." on the following link.
Michon and the Birth of Scientific Graphology.pdf

The author, Shaike Landau, lives in Israel and you can access the Hebrew version by clicking the following link.
Version in Hebrew