. Smithsonian miscellaneous collections. upper, an area showing elongated grains; light picral, x 100. diverseorientation of crystallographic planes in the elongated grains givethem a different sheen from that of adjacent grains. Lower, inclusion of troilite surrounded by schreibersite. The whitedroplets apparently are kamacite rejected from the cooling fe-fessolid solution. light neutral sodium picrate only, x 250. the picralstain on the phosphide areas shows a reticulated pattern. SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. 104, NO. 23, PL. 3. Upper, an area of kamacite showing fine grains of


. Smithsonian miscellaneous collections. upper, an area showing elongated grains; light picral, x 100. diverseorientation of crystallographic planes in the elongated grains givethem a different sheen from that of adjacent grains. Lower, inclusion of troilite surrounded by schreibersite. The whitedroplets apparently are kamacite rejected from the cooling fe-fessolid solution. light neutral sodium picrate only, x 250. the picralstain on the phosphide areas shows a reticulated pattern. SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. 104, NO. 23, PL. 3. Upper, an area of kamacite showing fine grains of varying size andshape with Neumann lines diversely oriented. Some areas show suchgrains; in others the kamacite is homogeneous. light picral, x j50. Lower, schreibersite needles, part of one of a number of long par-allel BANDS OF SUCH BODIES RUNNING ACROSS THE SURFACE OF SLICES. PlCRALAND NEUTRAL SODIUM PICRATE. X 100. SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. 104, NO. 23, PL. 4


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Keywords: ., bookauthorsm, bookcentury1800, bookdecade1860, booksubjectscience