Statistics for occurrence #1 of “Iceland” in article 17 of The Daily Dispatch: September 9, 1861., [Electronic resource]:

..."> --A lorgnette for subaqueous exploration has been prepared by Dr. C. M. Cresson, of Philadelphia. Its peculiarity consists in placing a Nicol's prism of Iceland spar between the object glass and the eye piece, which removes the greater part of the bright light reflected from the surface of water, and thus renders objects beneath water more distinctly visible...
Max. Freq. Min. Freq.
Entity Corpus Doc Corpus Doc  
Iceland (Iceland) 100 2 0 0 0 user votes
Iceland (California, 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.