I posted these links in another thread, but thought they deserved a thread of their own so that they might be easier to find by people.
The Waters Above the Firmament: Or The Earth's Annular System (1902), by Isaac Newton Vail,
Ferris and Leach, 406 pages, (file size: 9.6MB)
Google Books webpage:
http://books.google.com/books?id=cs4AAAAAMAAJ&dq=isaac+newton+vail&as_brr=1
The earth's annular system; or, The waters above the firmament. The world record scientifically explained (1912), by Isaac Newton Vail.
http://www.archive.org/details/earthsannularsys00vailiala
pdf file (29MB)
http://www.archive.org/download/earthsannularsys00vailiala/earthsannularsys00vailiala.pdf
djvu file (9.6MB)
http://ia331340.us.archive.org/2/items/earthsannularsys00vailiala/earthsannularsys00vailiala.djvu
The Vailan or annular theory : a synopsis of Prof. I.N. Vail's argument in support of the claim that this earth once possessed a Saturn-like system of rings (1892), by Stephen Bowers
http://www.archive.org/details/vailanorannulart00vailrich
djvu file (1.7MB):
http://ia331328.us.archive.org/3/items/vailanorannulart00vailrich/vailanorannulart00vailrich.djvu
pdf file (4.8MB)
http://ia331328.us.archive.org/3/items/vailanorannulart00vailrich/vailanorannulart00vailrich.djvu
The earth's annular system, or The waters above the firmament, the world record scientifically explained (1912), by Isaac Newton Vail.
http://www.archive.org/details/earthsannularsys00vailuoft
djvu file (12MB):
http://ia340904.us.archive.org/2/items/earthsannularsys00vailuoft/earthsannularsys00vailuoft.djvu
pdf file (35MB)
http://www.archive.org/download/earthsannularsys00vailuoft/earthsannularsys00vailuoft.pdf
--VM44