Document DdmR4GoQV4GR2MJbYNgZaqpv5

MRKCLEY &AV1S UWNE LOt ANCEi RIVERSIDE SAN PIECO IAN FKAKCMCO SANTA SAMARA SANTA CRUS COLLEGE Or AGRICULTURE DEPARTMENT OP NUTRITIONAL SCIENCES IMSn i'UTB OP MARINS RESOURCES EZRKBLET, CALIFORNIA 94720 Hay 7, 1969 Dr. A. J. Spezlale Director of Research, Agricultural Division Monsanto Company 800 N. Lindbergh Boulevard St. Louis, Missouri 63166 Dear Dr. Spezlale: As I wrote Ken Maddy last month, we are most interested In quantitative determinations of residues of the various Arochlors as they are accumulating in food organisms from the ocean, and wonder if you may have available Isolated pure compounds of which the Monsanto commercial products are mixtures. These would be useful to us, for example, as primary controls for gas chromatography. If sufficient amounts are available, we would be Interested In looking into their biological effects, such as on the thickness of egg shells for various species of birds, or on the enzymes which are Involved. Any Information or samples that you can share with us would be very much appreciated. Very truly yours HS0:ca cc: K. H. Maddy R. P. Upchurch H. S. Olcott Professor, Marine Food Science MQNS 090715