ine can screen of black paper, with two apertures of about the run through agricultural lands with no more interfer- occur. size and shape of the lenses of an eyeglass, see Fig. 2, In the Pruyn method of operating the electric power ence with tillage and grazing than would be occa- and around the… … lamp or gas light the lamp nearly over the curbs on should have a plain porce- each side of the street. dinary ground circuit. Instead of the return current lain or ground glass globe, or a piece of smooth white The structure is a permanent way. Once made, it is paper should be laid over the mirror…
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