Salvador Dali's "Family of Marsupial Centaurs"

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Salvador Dali

a) Dali's "Family of Marsupial Centaurs" (1940) references Hugo Steiner Prag's "At The Master Grave" (1915) for The Golem?

 

 

b) James Gleeson's The Sower references Salvador Dali's Family of Marsupial Centaurs?