The best raw materials for the preparation of thallium are the flue-dusts produced industrially in the roasting of thalliferous pyrites and the "chamber muds" accumulating in vitriol-chambers wrought with such pyrites; in both it is frequently associated with selenium. [Please select]
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The maid who dusts the downstairs rooms before breakfast lets him out, when she begins work. [Please select]
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The Osmia dusts them, brushes them thoroughly with her tarsi and then sweeps them out backwards. [Please select]
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Welman, whose spirit yet lived amid the dusts and draughts and dressing-rooms of that Avenue Theatre she had forsaken to marry her wealthy paralytic husband. [Please select]
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