magnetic compensation alone is too sluggish. speaking telegraph, runs parallel to or within the field of the In Fig. 8 is shown a modification of Fig. 1 to mect this con- for by its means the tclegraph engineer will be enabled to eradicate from his lincs the retarding and cost-entailing ef- dition,… … sending a current through the latter, it ry—the former to set up dynamical induc- were possible to transmit through each of tion currents, and the latter statical cur- rents. If current No. 1 is opened there the lines, E and F, a current in the same first appears a short wave of current direction…
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