The Voltage of Six Dry Cells connected in series as above would be approximately 6 x 1.5 or 9 Volts. ........................ FIG. 34.—Showing Six Dry Cells connected in Multiple. The Voltage of such an arrangement would only be 1.5, but the Amperage available would be six times that possible from Cells connected as in Figure 33. ............................................................... FIG. 35.—Showing how to connect a Battery of Cells in Series-Multiple. .................................................. FIG. 36.—Battery Connectors like that shown above can be obtained for 1 1/2 cents each and will be found to be very handy. .......... FIG. 37.—A Simple Experimental Storage Battery consisting of two Lead Plates immersed in Dilute Sulphuric Acid. .................... FIG. 38.—Showing how to charge a Simple Storage Cell composed of two Lead Plates immersed in Sulphuric Acid by connecting it to two Bichromate of Potash Cells. ....................................... FIG. 39.—Showing how the Plates for a Storage Cell may be made from Sheet Lead by boring it full of holes and filling with paste. ..... FIG. 40.—A set of three Plates composed of One Positive and Three Negatives assembled to form a Cell. ............................... FIG. 41.—Glass and Rubber Storage Cell Jars which are on the market for the Electrical Experimenter and may be purchased very reasonably. ....................................................... FIG. 42.—An empty Storage Cell Grid and also a Pasted Plate both of which are on the market for experimenters who wish to build their own Cells. ........................................................ FIG. 43.—Two Negative Plates "burned" together and the Connecting Lug used. ......................................................... FIG. 44.—The Elements of a Storage Cell composed of two Negative Plates and one Positive Plate in their proper position. ........... FIG. 45.—Three different sizes of Storage Cells which may be purchased ready made or built by the experimenter out of prepared materials as explained. ........................................... FIG. 46.—A Hydrometer for preparing and testing the Acid Solution for Storage Batteries. ............................................ FIG. 47.—The proper way of Recharging Storage Cells from the 110 Volts D. C. Supply in series with a set of Lamps. ................. FIG. 48.—A Lamp Bank consisting of a Set of 110-Volt Lamps connected Multiple and arranged to be placed in series with any device it is desired to use on the 110-Volt Current. ........................... FIG. 49.—A Single Cell of Electrolytic Rectifier. ................. FIG. 50.—An Electrode cut out of Sheet Metal. The top is bent over at right angles and drilled so that it can be mounted on the underside of the cover.