Valls asks BR for his opinion on his proposal to "... extend invitations, possibly as secretary of this Institute of History and Philosophy of Science (within which the Spanish Higher Research Council), to about twelve of the leading scientists of the world, to meet me at a private conference. This conference could be held in Switzerland, and my request to you, is that you will join me in sending out the invitations, since you are probably the most outstanding scientific philosopher now living."

He includes a specific agenda of the meeting in five points.

There is a postscript providing BR with an address to respond to.