The growth of pure Gd-and mixed Gd-Ba-molybdate crystals, bearing the stoichiometric composition Gd 2 Mo 7 O 24 ‚xH 2 O and Gd 2 Ba 24 Mo 42 O 153 , is achieved by the gel technique, using the system RCl 3 -(NH 4 ) 6 Mo 7 O 24 -NH 4 NO 3 -HNO 3 -Na 2 SiO 3 (where R ) Gd, Gd:Ba). Addition of Ba in the lattice of pure Gd-heptamolybdate influences the morphological developments of grown crystals. While pure Gd-heptamolybdate assumes a spherulitic morphology under all conditions of growth, the addition of Ba modifies the morphology of mixed crystals drastically and develops them as well-facetted pyramidal twinned crystals. The mixed crystals do not carry any water of hydration and are thermally more stable as compared to pure Gd-heptamolybdate carrying water of hydration.

ABSTRACT ABSTRACTAscariasis is highly endemic in Kashmir valley as temperate climate and wet soil provide excellent conditions for its development. We studied 198 cases (11%) of biliary ascariasis out of 1,800 patients of worm infestation from

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