. Electronic apparatus for biological research . Figure A method of holding a group of electrodes orifices placed some distance apart. In addition the electrodes may be separated a little by interposing pieces of impregnated paper, and the glass coated with wax. Such an assembly is cemented to a holder with wax {Figure ), and thin silver wire introduced to estabhsh connection with each. The electrodes can be filled with electrolyte solution in the usual manner. 564

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Keywords: ., bookcentury1900, bookcollectionameri, bookcollectionbiodiversity