[Steven Marsh]

I can't promise this is complete, but I think it's pretty close:

• Pyramid #3/4: Magic on the Battlefield -- "The Society of Siege Sorcerers" (a magical style with secret spells from Kromm)
• Pyramid #3/13: Thaumatology -- "The Magic of Stories" (meaty fairy-tale magic Path/Book treatment), Red Diabolism (Path/Book magic), "Salving Magic" (alternate Magic treatment of healing spells)
• Pyramid #3/25: Epic Magic -- "Essential Magic" (new Magic spells), "All the Epic Ways" (one new ritual)
• Pyramid #3/28: Thaumatology II -- "It's Pure Chemistry!" (contains a new alchemy-related spell)
• Pyramid #3/43: Thaumatology III -- "Ghoul Magic" by David L. Pulver[/i][/url] -- three rites
• Pyramid #3/48: Secret Magic -- "The Way of the Keepers" (a magical style with a secret spell), "Bibliomancy" (a collection of book-focused spells by David L. Pulver)

(I limited myself specifically to Magic-style spells or Thaumatology-style Path/Book rituals. There's lots of other magic material... for example, Ritual Path Magic has had a number of articles.)