This is the second part of the donation of Zane Greys. All are hardcover. Most are only reading copies. Most are under $3.
The best conditioned of the lot:
The Heritage of the Desert (1910)
The Thundering Herd (1925, first edition)
The most expensive (but in rough shape) one:
To the Last Man, illustrated with scenes from the photoplay, a Paramount Picture. (1922, $5)
And the only title I recognized. (Was it made into a movie?)
Riders of the Purple Sage (1912)
Look for these in the western section, at the end of the PB section.