The Growth of the Glacier Crystal

Abstract

This paper concludes the earlier researches of the author and his colleagues on the development of glacier ice from the snow crystal. It traces the crystal growth down to the end of the glacier and records the distribution of large crystals in glacier tongues. Various agencies are suggested which might help in the proposed investigation of the mechanisms of growth of the crystals of glacier ice.

Transferrin receptor and its recycling in HeLa cells.

“…Purity of the transferrin receptor was estimated on SDS polyacrylamide gels. The receptor ran as one 180 000-dalton protein under non-reducing conditions and as one 90 000-dalton protein after reduction with 20 mM dithiothreitol (DiT) (Seligman et al, 1979;Sutherland et al, 1981). Transferrin receptor was purified from HeLa cells for analytical experiments.…”

“…wt. of 180 000 daltons (Seligman et al, 1979;Sutherland et al, 1981;Trowbridge and Omary, 1981). Each dimer is believed to bind two transferrin molecules; once bound at the cell surface, the transferrin is internalized, presumably releases its bound iron in lysosomes, and is then returned to the cell surface (Karin and Mintz, 1981).…”

The Growth, Structure, and Properties of Sea Ice

“…skim. This technique, which has been successfully applied to both glacier and lake ice for grain size measurements and texture analysis (Seligman 1949, Ragle 1962, utilizes the fact that projections on the ice surface appear as lines or "ticks" on the rubbing, while "smooth" (0001) surfaces appear as white or uniformly shaded areas. Each group of parallel lines represents a single crystal of sea ice.…”

The microstructure of polar ice. Part I: Highlights from ice core research

“…Ahlmann and Droessler, 1949; 147 Seligman, 1949;Bader, 1951;Rigsby, 1951Rigsby, , 1958Rigsby, , 1960. These investigations 148 contributed to enriching the records of glacier microstructures, introducing new 149 details, diversity, and complexity to the picture.…”