On our field survey, some rare element minerals were found in the following new localities accompanied with the pegmatites:(1) Allanite, Fergusonite and Zircon in Hatchoiwa, Kitayamato-Mura, Nara Prefecture and in Osaka, Tabaru-mura, Osaka Prefect (2) Yttrotitanite, and a clayey mineral probably derived from Gadolinite in Mategata, Hagata-Mura, Ehime Prefecture (3) Fergusonite, Yttrianite and Thorogumite in Komenono, Tateiwa-Mura, Ehime Prefecture., Of these minerals, some chemical investigations were made in order to determine their defenite chemical constitutions.,
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