. Eight lectures on the signs of life from their electrical aspect. Electrophysiology. 118 THE SIGNS OF LIFE. EOmin. Fig. 50 (^Nos. 4199-4200).—Skin of breast 5 hours after amputation. Tested \>y tetanising currents for periods of 5 seconds each from a Berne coil at 5000 units, supplied by 8 Leclanche cells. Conductance at outset of experiment == 5, and calculated resistance = 320,000 ohms. After tetanisation the conductance was raised to (= 196,000 ohms); after further tetanisation it rose further to 25 (^88,000 ohms), when the record commenced. The resistance of the galvanometer and
. Eight lectures on the signs of life from their electrical aspect. Electrophysiology. 118 THE SIGNS OF LIFE. EOmin. Fig. 50 (^Nos. 4199-4200).—Skin of breast 5 hours after amputation. Tested \>y tetanising currents for periods of 5 seconds each from a Berne coil at 5000 units, supplied by 8 Leclanche cells. Conductance at outset of experiment == 5, and calculated resistance = 320,000 ohms. After tetanisation the conductance was raised to (= 196,000 ohms); after further tetanisation it rose further to 25 (^88,000 ohms), when the record commenced. The resistance of the galvanometer and electrodes - 20,000 ohms. The deflection by ^Vth volt through i megohm = 27. A^ h\ -Conductance at outsel = 25 1st response to tetan., ra. -, br. -1- — + volt. 2nd ,, ,, ' m. -t-, br. -, = + ,, 3rd „ m. -, br. + , = + ,, 4th m. -f, br. -, = + „ Conductance at end = 35 -Conductance . - 115 1st response to tetan., m. - br. + , = + volt. 2nd ,, „ m. + br. -, = 11 3rd m. - br. -f ~ + „ 4th „ „ m. + br. - - )> Conductance . . . . = US. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Waller, Augustus Désiré, 1856-1922. New York : E. P. Dutton
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