Document e7ronZwObDOE9ZGn8n944vrj4

/-?/- /c s~ r- / January 20, 1970 Mr. Al Zirkea Manager , Commercial Sales Trapslo Division/West 2030 Wright Avenue Richmond, California 94804 Dear Mr. Zirkes: We are shipping 12 soil cores by air freight, in two separate cartons. The cores are identified as Sample #345 - AI, All, Bl, BI1, Cl, CII from Norway, (description of sample enclosed) and Sample #346 one through blx from Peru. They are to be analysed for lead abundance in the top. and bottom of each core and for Pb 206, Pb 207, and Pb 208 ratios in the top and bottom of each core. Please send the results to: Dr. G. J. Stopps, E. 1. du Pont de Nemours and Company, Haskell Laboratory, Elkton Road, Newark, Delaware 19711. Sincerely yours, Martha McLaughlin MMcL/jtd Attachment P.S. Please do not start work on this project until receipt of our purchase order authorising payment of your charges, which we understand will be $4296.00. ,, DUP040002550