re: Yo, R.L. -- and Nick . . .
Dan,
The hawaii aurora sighting in 1800's is just what I read... The article also stated they were visible in Cuba...
Personally, I have never seen an aurora in my life... I hope to see one someday...
I would take the isotope measurements with a grain of salt since isotopic ratios can vary with other environmental conditions- anyone know what the isotope was?
