While he was being paid by Monsanto, Sir Richard wrote to a royal Australian commission investigating the potential cancer-causing properties of Agent Orange, made by Monsanto and used by the US in the Vietnam war. Sir Richard said there was no evidence that the chemical caused cancer...
Sir Richard died last year. Among his papers in the Wellcome Foundation library archive is a contract he signed with Monsanto. Dated April 29 1986, it extends for a year the consulting agreement that began on May 10 1979 and offers improved terms. "During the one-year period of this extension your consulting fee shall be $1,500 per day," it says.
Monsanto said yesterday it did not know how much work Sir Richard did for the company, but said he was an expert witness for Solutia, a chemical business spun off from Monsanto, as recently as 2000.