You claimed that two Spalding manuscripts exist or existed. Is this online book based on the manuscript that was discovered in 1885, or from a different manuscript?
If from a different manuscript, does it have Nephi and Lehi as main characters as was claimed in the 1834 Mormonism Exposed?
Why don't you give the link to the online book?
http://solomonspalding.com/docs/rlds1885.htm#pg001