Elementary treatise on electric batteries . upon the conductivity of the agglomer-ated mass and upon the adherence of the carbon in thismass. The new disposition does away with the inequali-ties that this contact produced in the resistance, and whichwere the result of the production of ammonia in the interiorof the agglomerate at the contact with the carbon in the new battery the resistance only de-pends upon the conductivity of the liquid conductivity rather tends to increase than to diminish;in effect, by the working of the battery, chloride of zinc,which is a
Elementary treatise on electric batteries . upon the conductivity of the agglomer-ated mass and upon the adherence of the carbon in thismass. The new disposition does away with the inequali-ties that this contact produced in the resistance, and whichwere the result of the production of ammonia in the interiorof the agglomerate at the contact with the carbon in the new battery the resistance only de-pends upon the conductivity of the liquid conductivity rather tends to increase than to diminish;in effect, by the working of the battery, chloride of zinc,which is a very good conductor, is formed; it is only thedepolarizing power of the agglomerate pressed against thecarbon which varies. Besides, by increasing the number of these little bricks 192 TWO-LIQUID BATTERIES. placed against the carbon, the internal resistance of theelement may be diminished at pleasure. Leclanche some-times puts one, sometimes two as shown in Fig. 45, andsometimes three. An incontestable advantage of the new battery is that. Fig. 45. the same elements may be employed indefinitely, and itis only necessary to renew the zinc and the agglomeratedbricks when they are worn. OXIDES IN BATTERIES. 193 CLARKE AND MUIRHEADS MODIFICATIONOF LECLANCHES BATTERY. The only difference between this battery and that ofLeclanche is that in the former the carbon electrodeand indeed the pieces of carbon mixed with the bioxideof manganese are platinized This is certainly a verygood idea, as we mentioned when speaking of Smees andof Walkers batteries. The polarization is thus undoubt-edly diminished. According to information given by the inventors, thisnew cell, after working one minute in a circuit of 100units of resistance, only loses 1 per cent of its electro-motive force by polarization, whereas Leclanches cellloses 2-J pei cent. After five minutes the platinized cell only loses 2 percent, while the Leclanche loses 5 per cent. After ten minutes the first one again loses 2 per cent,a
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