. Contributions. Electrolytic Rectifier, by S. R. Cook, Phys. Rev., i8, pp. 23-29, ; also Phys. Rev., 20, pp. 312-321, May, 1905; H. W. Morse and C. L. B. Shuddemagen,American Acad. Arts and Sciences, Proc, 44, pp. 367-397, 1908-9. Vol. ]No. 4- J POLAR!Z.\TIO.\ l.\ Tin: ALL MlMiM RECTIFIER. 26: repetition of comparative txporinu-nts gave a similar iliaracieristicdiflFerence, which indicates that when the charged rectifier is connectedto a condenser, a quantity of electricity requiretl to charge the condenserbeing taken from the rectifier, the electrical condition of the rectifier
. Contributions. Electrolytic Rectifier, by S. R. Cook, Phys. Rev., i8, pp. 23-29, ; also Phys. Rev., 20, pp. 312-321, May, 1905; H. W. Morse and C. L. B. Shuddemagen,American Acad. Arts and Sciences, Proc, 44, pp. 367-397, 1908-9. Vol. ]No. 4- J POLAR!Z.\TIO.\ l.\ Tin: ALL MlMiM RECTIFIER. 26: repetition of comparative txporinu-nts gave a similar iliaracieristicdiflFerence, which indicates that when the charged rectifier is connectedto a condenser, a quantity of electricity requiretl to charge the condenserbeing taken from the rectifier, the electrical condition of the rectifier isthereby disturbed and the difference of potential between the electrodesof the rectifier decreased. The potentiometer method was. tlierefore,used throughout the remainder of the experimental work. The arrangement of apparatus for the measurement of the of the rectifier after the expiration of definite peri(Kis of opencircuit is indicated in Fig. i. i? is the aluminium rf<tifier. in which A is. the aluminium anode; C the platinum cathcxle: H. an alunununntest electrode placed at one side and s.)mewhat in the rear of the soas not to be in the path of the current between anode and , the charging storage batter> ; ^fA, a milliammeter; R. and /?:.two high grade Leeds and Northrup resistance Ix^xes; /?,. a high gradeLeeds and Northrup resistance box with travelling Pl^Ki ^^•^•^^ resistance box; a cadmium standard cell: C, a Leeds and^Northrup high sensibility galvanometer having a resistance of 266 CLARENCE W. GREENE. [III^es. ohms; , a storage battery; and D, a disc especially designed forthis experimental work. The disc consisted of a single piece of hardrubber, cm. in diameter and i cm. thick, to which were firmlyriveted two concentric brass rings, 2 mm. thick and cm. wide, theoutside diameters being cm. and 13 cm., respectively. The innerring wa5 divided into 30° sectors, one of which was s
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