Page:Popular Science Monthly Volume 73.djvu/319

From Wikisource
Jump to navigation Jump to search
This page has been proofread, but needs to be validated.
THE INDUSTRIES OF NIAGARA FALLS
315
"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