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that natural electric currents often tr'tverse the telegraphic wires, which are strongest in the neighborhood of the volcanic terrace of Vultures. They are most noticeable in October, November, December, March and April, especially during thlls of" snow.--Bull, del l~/e. Ilal. C.
A new rapid sample preparation scheme for the determination of low levels of platinum metals (PMs) has been proposed. The technique includes, microwave dissolution of samples followed by dynamic sorption preconcentration of the PMs on a polystyrene based sorbent containing diethylenetriamine groups.
Different methods of deducing the basic equation of the thermodynamic theory of eleo trocapillarity for hydrogen-adsorbing metals are compared. The relations that determine the value of the isoelectric potential shift under different conditions, as well as the value of the dependence of the potentia