American telegraphy and encyclopedia of the telegraph; systems, apparatus, operation (1909)
Maver, William, jr. [from old catalog] · New York, Maver publishing company · leaf 43
o, as indicated by the arrows,that is, from the point of high to thepoint of lower potential. As each cellincreases the electromotive force by ivolt, the E. M. F. at any one of the cells,that is, the difference of potential bet-ween that cell and zero, will be foundto be, practically, as indicated… … m CELLS IN SERIES. of 6 cells, each, with the negative poleof each row joined at a, and the positive pole of each row Joined at b. When thusarranged the two rows of cells are said to be in multiple, or parallel. FIG 14.
Telegraph
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