1-4 of 4 Books
Notes on Nebraska fulgurites
Notes on Nebraska fulgurites
By Erwin Hinckley Barbour
Manganese fulgurites
Manganese fulgurites
By Harold James Cook
An iron fulgurite from Nebraska
An iron fulgurite from Nebraska
By C. M. Riley
Sand fulgurites from Nebraska
Sand fulgurites from Nebraska
By Abram E. Anderson