; strong nitric acid. ing

(q.v.); (3) the production of induced currents by the action of anohter current or of a magnet; (4) the measurement of the strength of the cur¬ rent, as with the galvanometer. (See Galva¬ no meter, Ether.) used—the arc and the incandescent. When a strong current pa es between two carbon points which have bqen first in contact and are after¬ wards separated a short distance, the interval between them is occupied by a luminous band Encyclopedic Dictionary of Common Things I, Ebonite plate; B and P, upper and lower plates of bra ; R, detecting pres¬ sure of electric current. By rub¬ bing a gla rod with a piece of silk and touch¬ ing the knob W, the strips of gold leaf will part indicating pre ure of elec¬ tricity. [B.] Substan¬ ces which can¬ not be decom¬ posed by chem¬ ical action, and which seem to be unit forms of matter, as dis¬ tinguished from compound s. They are rough¬ two great cla es -the metals, by wirew; gg, gla supports for w: v, 1nPfo1c nr