Dear Friends

I am researching Leon Walras's aspiration to 
produce a theory of economics whose stability 
properties would be like the stability of planetary orbits.
In 'The Idol of Stability' (1997-98 Tanner 
Lectures) Stephen Toulmin writes 
[http://www.tannerlectures.utah.edu/lectures/documents/Toulmin99.pdf]:

"During his last ten years, he [Walras] kept 
writing to Poincaré, hoping to win the great 
mathematician’s approval for a parallel he 
thought he had established, between the laws of 
economic equilibrium and those that supposedly 
ensured the stability of the planets: Walras’s 
last paper, in fact, was entitled Economique et 
mecanique. By this time, Poincaré himself, of 
course, no longer believed that the planetary 
orbits had any essential stability"

Jolink and van Daal (1989) in an article in the 
HES bulletin 11:1, reference published versions 
of this lecture in French and in Metroeconomica vol 12 No. 1, 1960.

Does anybody know if either the French or English 
version of this lecture are available in an open 
access form or simply on line, and also whether 
there are other relevant places where Walras 
specifically  invokes planetary stability as a 
desirable property of a mechanical system, which 
economic theory should emulate?

Regards
Alan Freeman