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ofResistance of Oxide Cathode Coatings for HighValues of Pulsed Emission.\*---~V. E. DANFORTH 1 AND D. L. GOLDWATER.1 Measurements are described of the potential variation of fine ribbon probes embedded in standard barium and strontium oxide coatings. Observations were made with 19 tubes at values o
Electrical Section. 199 to the exposure of the water in a tank before the sample was bottled for analysis. The excessive amount of sodium chloride in this well water may be attributed to the probable existence of saliferous beds somewhere in the vicinity. It is stated that during the Civil War " sa
Improved Bd[ortax.-Sawdust is better than hair in protectiug rough cast from peeling and scaling under .the influence of frost and weather. The sawdust should be first dried and then thoroughly .sifted, in order to remove the coarser particles. A mixture is then made of t'wo parts sawdust, five pa