Statistics for occurrence #1 of “Prussia” in article 1 of The Daily Dispatch: March 6, 1862., [Electronic resource]:

...was supplied from artificial nitre beds. In France alone, the yield was a thousand tons per annum. It was proportionate in Holland, Prussia, Sweden, and Germany. Nitre is still extracted from beds in Prussia , Sweden, and other countries in Europe. Dr. P. replies to Dr. M. as follows: Richmond, October 28, 1861. Sir --In reply to your letter of the 28th instant, I submit the following stat...
Max. Freq. Min. Freq.
Entity Corpus Doc Corpus Doc  
Prussia (Iowa, United States) 2 0 0 0 0 user votes
Prussia (Ohio, United States) 2 0 0 0 0 user votes
Prussia (New Mexico, United States) 0 0 0 0 0 user votes

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