“…Gummite pseudomorphs after uraninite crystals show a very characteristic sequence of alteration products that has long been recognized^ Brief descriptions have been given by Kerr (1877), Genth (1879), Hidden (I88j_., Von Foulion (1883), Hoffman (1901, Tipper (1919), Schoep (1921), Buttgenbach (1922), Hacquaert (1927Hacquaert ( ), ^llsworth (1930, Ross, Henderson andPosnjak (1931), lagoda (1946), Sarkar and Sen (1946), Krishnan (1948), Bakken, Gleditsch and Pappas (1948), and Page (1950) is common at the surface of pegmatites in the Gaya district, India, and passes into pure uraninite in depth (where a nodule 36 pounds in weight was found). This also is true in the New -England pegmatites.…”