. Bell telephone magazine . / ndcr Uie sure loach of ilw crujlsnum, this hcirildcriiuf maze of wire icill shorlly he converted ink) a neat and orderly hay of relay rack in a central ojjice, trilli everv last irire soldered to its correct Icniinal. 126. Adjushtuj rlulchcs on friclion roll drives on puncl dial (\vchiin(]c eiiiiipnicid. Thesedrives move the seleelor rods trhich make the desired eonneclions. 127

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Keywords: ., bookauthoramerican, bookcentury1900, bookdecade1920, bookyear1922