Page:Popular Science Monthly Volume 73.djvu/319

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315

THE INDUSTRIES OF NIAGARA FALLS

"Step up" Transformer Plant of Canadian Niagara Power Company.

Transformer plant of Niagara Palls Power Company.

11,000-volt Switchboard and Bars in "Step up" Transformer,
plant of Canadian Niagara Falls Power Company.

charcoal and lampblack; in the crystallized form as diamond, and in the graphitic form as graphite. Until the discovery of a process for making graphite out of amorphous carbon the only source of supply

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