Elemental analyses of soybean leaf tissue from B & Mn field studies Indicate that washing tissue in deiontzed water did not appreciably change the concentration of most elements in the tissue. An exception was N which was decreased 0.54 per cent for one location and 0.33 per cent for the average of 3‐ sites when washed in deionized water prior to analyses. Although the tissue did not Indicate appreciable change tn K content when washed, the water In which the tissue had been washed Increased In K content by 6 ppm. The content of four of the micro elements in the plant tissue was affected by washing as compared to the unwashed samples. Mo and Ni were decreased while Zn andCuwere Increased.