Keywords: pubic domain trees collage fodder inspiration drawing reference elusive muse monochrome cartoon Public Domain Book: Common trees of Puerto Rico and the Virgin Islands by Little, Elbert Luther, 1907- archive.org/details/commontreesofpue00litt Public Domain Book: Common trees of Puerto Rico and the Virgin Islands by Little, Elbert Luther, 1907- archive.org/details/commontreesofpue00litt |