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A. L. Coulson annular appear arranged association Asterophragmina badly beds birmanica sp blemishes block mica bore-hole buckled Burma Calcutta centre characteristics Chart Coals coils Cole complete contain crack Davies definitions dense described diameter Discocyclina economic edge Eocene equatorial chambers Fauna Foraminifera G. S. I. Type genus Geol Geological Survey grade half hard inches issued J. A. Dunn largest rectangle obtainable Lepidocyclina light lines LXXVII M. S. Krishnan maps MEASURING Memoirs mica microspheric mile Mineral Note noticed nucleoconch Nummulites official pagoda Photos Plate Polylepidina prepared Priabonian Professional Paper Pseudophragmina publications published radial range recent Records Report scale sheets sickle side sizes slightly small air spots Sorting Chart species specks spiral STAINED BLOCK STANDARD sub-genus Survey of India triangles Upper Vaughan vegetable stains VOLUME walls wavy Yaw stage