There's some Dunsany on Project Gutenberg
http://www.gutenberg.org/browse/authors/d#a2685
And the following info about Clark Ashton Smith was posted on TORC by Denethor
Smith was primarily a poet (heavily influenced by the French Decadence movement of the nineteenth century), who got talked into writing short-stories by his friend Lovecraft in the early 1930s, wrote about a hundred short-stories in the space of a few years, then abruptly stopped after Lovecraft's death (Smith himself died in 1961). Anyway, other stories in his top tier would include:
The Coming of the White Worm
The Dark Eidolon
The Empire of the Necromancers
The Garden of Adompha
Genius Loci
The Isle of the Torturers
Necromancy in Naat
The Dark Eidolon and Necromancy in Naat are probably his two most famous ones.
