fludd's philosophy is presented in "utriusque cosmi, maioris scilicet et minoris, metaphysica, physica, atque technica historia" ("the metaphysical, physical, and technical history of the two worlds, namely the greater and the lesser", published in germany between 1617 and 1621); according to frances yates, his memory system (which she describes in detail in "the art of memory", pp. 321–341) may reflect the layout of shakespeare's globe theatre ("the art of memory", chapter xvi).