. A revised and enlarged edition of Clarks̕ New system of electrical medication. efacts has been that the prevalence of cholera is largely owingto a lack of electricity in the atmosphere, and consequently toa want of the animal electricity or electro-vitality in the sys-tem of the patient; and thence it might be concluded thatcholera implies a negative condition of the system. I thinkthere is a fallacy in this reasoning. There appears to me tobe an unwarrantable assumption in confidently attributing thelong absence from the heavens of marked electrical phenomena,and the failure of the electric
. A revised and enlarged edition of Clarks̕ New system of electrical medication. efacts has been that the prevalence of cholera is largely owingto a lack of electricity in the atmosphere, and consequently toa want of the animal electricity or electro-vitality in the sys-tem of the patient; and thence it might be concluded thatcholera implies a negative condition of the system. I thinkthere is a fallacy in this reasoning. There appears to me tobe an unwarrantable assumption in confidently attributing thelong absence from the heavens of marked electrical phenomena,and the failure of the electric machine to give its spark, to anunquestioned deficiency of atmospheric electricity. Electrical 63 ELECTRICAL SCIENCE. manifestations take place only when the plus and minus con-ditions are existing, in relation to each other, somewhat near,or not very remote; and the visible phenomena appear whenthe positive and negative rush together, so as to produce apolar equilibrium. But suppose a plus condition to exist overa wide region, then, everything being overcharged, the visible. No. 2. Physicians Visiting Machine. No. 2 is a four coil apparatus, producing ten currents of electricity, of com-pact form, with an upright stopper battery, constantly ready for use manyweeks without any attention. The coil-box stands upright in one end of thecase where it is hinged. By springs underneath the hinges that fasten the coil-box to the case, the battery is connected to operate the coils when turned downto a horizontal position, as seen in the figure. If ever desired the coil-box canbe detached and connected with any other battery by the two screw cups onthe back part. This machine is about 6 inches long, 3^ wide, and 6 inchesdeep, and has a metallic handle for carrying. No. 3 is another form of Physicians Visiting Machine. It has ten currentsof the same qualities as those of Machine No. 2; but the helix remains hori-zontal in the case, which is a little larger than that of No. 2. With rubber
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectelectri, bookyear1882
