6/16

exposing the anthotypes:
paper is coated with an "emulsion" made from the liquid extracted from crushed organic matter which is light sensitive

the top ones use (primarily) organic matter
to block the sun like a photogram
but in this case,
the part left exposed to light
will bleach out
(not get darker)

the bottom two use a b&w image printed on transparency film to block light
again, the lighter area of the film will get bleached out