....here are some links to some of his stories that were originally printed in WEIRD TALES.
His first story in WEIRD TALES: The Ninth Skeleton. (September 1928)
The Necromantic Tale. (January 1931)
The Seed from the Sepulcher.(October 1933).
The Garden of Adompha. (April, 1938).
If you haven't figured it out yet, these all came from the same site: The Eldritch Dark: The Sanctum of Clark Ashton Smith. Nice little site to curl up with on these dark and dreary nights heading towards Halloween.