Voarchadumia in James Blish

Through Google Print I find that a work by James Blish includes the word 
Voarchadumia. However, as it only provides a snippet view and as this is 
quoted in another work, I cannot determine which work by Blish includes 
the word. I would greatly appreciate it if anyone could give me the 
reference.

(The word Voarchadumia is found in E.R. Eddison's _The Worm Ouroboros_, 
which is surely Blish's source. It originally comes from a 16th-century 
alchemical treatise.)

Thanks in advance.

-- 
Dan Clore

My collected fiction, _The Unspeakable and Others_:
http://tinyurl.com/2gcoqt
Lord Weÿrdgliffe & Necronomicon Page:
http://tinyurl.com/292yz9
News & Views for Anarchists & Activists:
http://groups.yahoo.com/group/smygo

Strange pleasures are known to him who flaunts the
immarcescible purple of poetry before the color-blind.
-- Clark Ashton Smith, "Epigrams and Apothegms"