I am looking for published literature which details the mediums and
techniques used by the painter, Salvador Dali. I have a copy of Dali's
"50 Secrets of Magic Craftsmanship", but my question is this: Are
there any sources which are more specific and less 'eccentric'? Could
you refer them to me by author and/or title?

Dear Deadhead,

I have enjoyed researching your question.  After searching various
on-line art journals and Dali-related sites I have compiled the
following list of sources:

Dali’s Optical Illusions by Dawn Ades

“This visually gripping book focuses on a central but relatively
unexamined aspect of the work of Salvador Dali:  his fascination with
optical effects and visual perception.  The book examines Dali's use
of various pictorial techniques, photography and holograms to further
his exploration of visual perception and the ways that optical
illusion affects our sense of reality.”
(http://showcase.netins.net/web/reading/dali1.html)

To purchase this book for $31.00 :
http://www.powells.com/search/DTSearch/search?partner_id=349&cgi=search/search&searchtype=isbn&searchfor=0300081774

Dali, The Paintings by Robert Descharnes, $40.00
Discusses Dali’s changing techniques and styles over the years.
http://www.amazon.com/exec/obidos/ASIN/3822812099/qid=1040577443/sr=2-1/ref=sr_2_1/002-1750454-1436842

Another book that explores the evolution of Dali’s art is Salvador
Dali's Art and Writing 1927-1942 : The Metamorphoses of Narcissus by
Haim Finkelstein, $33.00 at:
http://www.amazon.com/exec/obidos/ASIN/0521639255/greggiefineart/002-1750454-1436842

Volume Three of the Dali Archives (coming soon) explores Dali’s
objects such as sculptures and jewelry.  You can order it at this site
in the near future.
http://daliarchives.com/publications.htm

Reynolds Morse, a friend of Dali’s published the book. Dali: A Study
of His Life and Works. New York Graphic Society, 1957.  I cannot find
it for sale on-line but it is likely available at your public library


Other books you might find interesting:
Dali on Modern Art:  The Cuckolds of Antiquated Modern Art.  At 
Amazon for $5.95. ( I can’t promise this won’t be eccentric as it is
written by Dali himself).
http://www.amazon.com/exec/obidos/ASIN/0486292207/qid%3D1040577297/sr%3D11-1/ref%3Dsr%5F11%5F1/002-1750454-1436842

Dali:  Art and Ideas by Robert Radford
http://www.amazon.com/exec/obidos/ASIN/0714834114/greggiefineart/002-1750454-1436842

Library of Congress citations about Dali:
http://www.mala.bc.ca/~mcneil/cit/citlcdali.htm


Other items of potential interest:

The Dali Study Centre has various articles and Catalogs.  Most do not
specifically address the artist’s technique but some of the catalogs
contain discussions by art historians.
http://www.salvador-dali.org/eng/ced.htm

An article about Dali’s optical illusions at the Scottish National
Gallery of Modern Art:
http://www.artcriticlondon.com/level1/reviewarchive/2000/aug_900_main.html

I found the above article and a few other items by searching
artcyclopedia at:
http://www.artcyclopedia.com/artists/dali_salvador.html

Lesson Plans from the Dali Museum (PDF Format)
http://www.salvadordalimuseum.org/cgi-bin/SoftCart.exe/edu/teacher/guide/museumplans.html?L+dali+ilry7976+1040635380

At the following site you can ask questions and have them answered by
a self-proclaimed Dali expert:
http://www.seven7.demon.co.uk/dali/answers.htm


Search Strategy:
Salvador Dali Technique
Art journals, Dali
Amazon.com, Dali

List of art journals on-line:
http://www.ilpi.com/artsource/journals.html
http://www.zeroland.co.nz/art_ezines.html

I hope you find this helpful.  If anything is unclear please request a
clarification and allow me to respond before rating this answer.

Regards,
Gitana