29 . * - Tm re PROG t ~ enw mm nee en ere em ™ - me ne - een woe Mh Ee mew KT EH Bee es uae wT tt Lee Fig. 14, age ae Photograph and radioautograph of old soil showing correspondence of radioactive portions ts organic matter. <
29 . * - Tm re PROG t ~ enw mm nee en ere em ™ - me ne - een woe Mh Ee mew KT EH Bee es uae wT tt Lee Fig. 14, age ae Photograph and radioautograph of old soil showing correspondence of radioactive portions ts organic matter. <