Comets

Comet's Burial

Raymond Z. Gallun

Comets and Meteors

Their phenomena in all ages; their mutual relations; and the theory of their origin.

Daniel Kirkwood

Images of Comet Wild 2, Taken by NASA's Stardust spacecraft in 2004

United States. National Aeronautics and Space Administration

Star-land

Being Talks With Young People About the Wonders of the Heavens

Robert S. (Robert Stawell) Ball

Ragnarok

the Age of Fire and Gravel

Ignatius Donnelly

In the Days of the Comet

H. G. (Herbert George) Wells