... 10 1 ::40,0004,000,P =-0 024 11 . 10 0 10 ::40,0004,000,P= -0 27 12 . 1, 000 10 0::40,0004,000,p= -1 4 13 . 10 ,000 1, 000 ::40,0004,000,P- -2 03 14 . 10 0 1 ::400,0004,000,/> =-0 029 15 . 1, 000 10 : :400,0004,000,P= -0 15 16 . 10 ,000 10 0: ... ::4,0004,000,,,p= -7 55. 10 ,000 10 ,000 ::4,0004,000,p= -3 86. 1 10:: 4004,000,P= -0 257. 10 10 0:: 4004,000,P= -2 19 8. 10 0 1, 000 ::4004,000,/)= -9 09. 1, 000 10 ,000 ::4004,000,P= -5 8 10 . 10 1 ::40,0004,000,P =-0 024 11 . ... PROPAGA-TIONOFCURRENTIN WIRES. 14 1Art. 21. DIMENSIONSOFA MAGNETIC POLE. - - - - 17 9Art. 22. THEORY OFMICROPHONEANDRESISTANCE OPCARBON CONTACTS. 18 1Art. 23.THEEARTH AS A RETURN CONDUCTOR. - - - 19 0Art.24....