Statistics for occurrence #1 of “Niagara” in entry electricity-in-the-nineteenth-century of Harper's Encyclopedia of United States History:
...metal, which competes in price with brass, bulk for bulk, was only obtainable before its electric reduction at $25 to $30 per pound.
The metal sodium is also extracted from soda.
A large plant at Niagara also uses the electric current for the manufacture of chlorine for bleach, and caustic soda, both from common salt.
Chlorine of potassium is also made at Niagara by electrolysis.
The field of ele...
| Max. Freq. | Min. Freq. | ||||||
|---|---|---|---|---|---|---|---|
| Entity | Corpus | Doc | Corpus | Doc | |||
| Niagara (Missouri, United States) | 2 | 0 | 0 | 0 | 0 user votes | ||
| Niagara | 0 | 0 | 0 | 0 | 0 user votes | ||
| Niagara (Kentucky, United States) | 0 | 0 | 0 | 0 | 0 user votes | ||
| Niagara (North Carolina, United States) | 0 | 0 | 0 | 0 | 0 user votes | ||
| Niagara (North Dakota, United States) | 0 | 0 | 0 | 0 | 0 user votes | ||
| Niagara (Oregon, United States) | 0 | 0 | 0 | 0 | 0 user votes | ||
| Niagara (Pennsylvania, United States) | 0 | 0 | 0 | 0 | 0 user votes | ||
| Niagara (Virginia, United States) | 0 | 0 | 0 | 0 | 0 user votes | ||
| Niagara (Wisconsin, United States) | 0 | 0 | 0 | 0 | 0 user votes | ||
† This entity has been selected by the automated classifier as the most likely match in this context. It may or may not be the correct match.