Dear Dr. Rolf, Can you send me the article too? "Mook, W.G., 1982. The oxygen-18 content of rivers. Mitt. Geol.-Paldont. Inst. Univ. Hamburg, SCOPE/UNEP Sonderband 52, 565-570" Bhishm Kumar ************************************************************* Dr. Bhishm Kumar Scientist F & Head Hydrological Investigations Division (Formerly Nuclear Hydrology Division) National Institute of Hydrology Roorkee - 247 667 (Uttaranchal), INDIA Phone: (O) +91-1332-276414 (R) +91-1332-270846; 272111 Fax: +91-1332-272123 E-mail: [log in to unmask] ************************************************************