Chicago : [Popular Engineering Pub. Co.] · leaf 167
producing some- do not themselves operate the screw or rud- thing more than a mere toy. der, they simply control the apparatus. The contrivance when out of water has the appearance of being two torpedoes, one Cathedral at Night in City of Mexico above the other and about six feet apart. The upper… … These towers reach ILLUMINATED CATHEDRAL less impulses. Upon to a height far above the masts are electric all otherrbuildings in that quarter of the city lamps which are automatically lighted by the and the electrical illumination may be seen battery current as soon as the Hertzian from all points…
Electricity
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