I don't recall the specific article to which you refer, but I can
tell you the *exact* Silly Putty [tm] formula used for many years by its
manufacturer, Binney & Smith Co.  This may not be the current formula
(see note below), but the following information was freely disclosed by
Binney & Smith to those persons and organizations dealing with poison
control and consumer product toxicology.

	Dow-Corning silicone polymer		82.4% by weight
	Boric oxide				 4.5%
	Lithopone white pigment (barium sulfate,
	  zinc sulfide and zinc oxide)		 9.3%
	Glycerine				 1.7%
	Ferric stearate				 1.7%
	Red iron oxide				 0.2%
	Oleic acid				 0.2%

	Due to potential toxicty, boric oxide may no longer be used.