GRAND AURORA OF SEPTEMBER 1-2, 1921 (AT SILVER LAKE, N. H., LAT. 43.9 N.)

C. F. Brooks
1921 Science  
doi:10.1126/science.54.1397.329-a pmid:17816051 fatcat:kgpg2j3gi5fgxhjxapylzk5k5i